#include <bits/stdc++.h>
#define rep(i,n) for(int i=0;i<(int)(n);i++)
using namespace std;
using ll = long long ;
using P = pair<int,int> ;
using pll = pair<long long,long long>;
constexpr int INF = 1e9;
constexpr long long LINF = 1e17;
constexpr int MOD = 1000000007;
constexpr double PI = 3.14159265358979323846;

int main(){
    ll A;
    cin >> A;
    A *= 2;
    for(ll i=1;i*i<=A;i++){
        if(A % i != 0) continue;
        ll y = i;
        ll x = A / i;
        if(x - y - 1 >= 0 && (x-y-1)%2 == 0 && (x+y-1)%2 == 0 && (x+y-1)/2 - (x-y-1)/2 >= 3){
            printf("YES\n");
            //printf("%lld %lld",(x-y-1)/2,(x+y-1)/2);
            return 0;
        }
    }
    printf("NO\n");
    return 0;
}