#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
constexpr int Inf = 1000000030;
constexpr ll INF= 2000000000000000000;
constexpr ll MOD = 1000000007;
const double PI = 3.1415926535897;
typedef pair<ll,ll> P;
typedef pair<int,P> PP;

template<class T> inline bool chmax(T &a, T b) {
    if (a < b) {
        a = b;
        return 1;
    }
    return 0;
}

template<class T> inline bool chmin(T &a, T b) {
    if (a > b) {
        a = b;
        return 1;
    }
    return 0;
}

ll mod(ll val, ll M) {
    val = val % M;
    if(val < 0) {
        val += M;
    }
    return val;
}

template<typename T>
T RS(T N, T P, T M){
    if(P == 0) {
        return 1;
    }
    if(P < 0) {
        return 0;
    }
    if(P % 2 == 0){
        ll t = RS(N, P/2, M);
        if(M == -1) return t * t;
        return t * t % M;
    }
    if(M == -1) {
        return N * RS(N,P - 1,M);
    }
    return N * RS(N, P-1, M) % M;
}

int main() {
    ll A;
    cin >> A;
    A *= 2;
    bool ret = false;
    for(ll i = 3;i * i <= A;i++) {
        if(A % i == 0) {
            if((A / i + 1 - i) % 2 == 0) {
                ret = true;
            }
            if((A / (A / i) + 1 - (A / i)) % 2 == 0) {
                ret = true;
            }
        }
    }
    if(A % 2 == 0) {
        if(A / (A / 2) + 1 - (A / 2) % 2 == 0) {
            ret = true;
        }
    }
    if((3 - A) % 2 == 0) {
        ret = true;
    }
    if(ret == true) {
        cout << "YES" << endl;
    }
    else {
        cout << "NO" << endl;
    }
}