#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,m,n) for(int i=m; i<int(n); ++i)
#define repll(i,m,n) for(ll i=m; i<ll(n); ++i)
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()
#define fi first
#define se second

template<typename T> bool chmin(T& a, T b){ if(a > b){a = b; return true;} return false; }
template<typename T> bool chmax(T& a, T b){ if(a < b){a = b; return true;} return false; }

template<typename T> T gcd(T a, T b){ return a % b ? gcd(b, a % b) : b; }
template<typename T> T lcm(T a, T b){ return a / gcd(a, b) * b; }

int main(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    ll n;
    cin >> n;

    ll lo = 0LL, hi = 1500000000LL, md;
    while(abs(hi - lo) > 1LL){
        md = (hi + lo) / 2LL;
        (md*(md + 1LL)/2LL > n ? hi : lo) = md; 
    }
    
    if(lo*(lo + 1LL)/2LL == n){
        cout << "YES" << endl;
        cout << lo << endl;
    }else{
        cout << "NO" << endl;
    }
    
    return 0;
}