#include<iostream>
#include<cmath>
using namespace std;
int main(){
    long long n;
    cin >> n;
    long long a = 8*n + 1;
    long long b = (long long)sqrt(a);
    if(b*b != a) cout <<"NO" << endl;
    else{
        if((b-1)%2 != 0) cout <<"NO" << endl;
        else{
            cout << "YES" << endl;
            cout << (b-1)/2 << endl;
        }
    }
    return 0;
}