#include<iostream>
#include<algorithm>
#include<vector>
#include<cstdio>
#include<cmath>
using namespace std;

int main(){
    unsigned long long N;
    cin >> N;
    for(unsigned long long  i=sqrt(N);i<315360000000000000;i++){
        if(N*2<=(i*(i+1))){
              cout << "YES" << endl;
              cout << i;
              return 0;
        }
    }
    cout << "NO" << endl;
    return 0;
}