#include <iostream>
#include <vector>
#include <string>
#include <cstring>
#include <math.h>
#include <cmath>
#include <limits.h>
#include <map>
#include <set>
#include <queue>
#include <algorithm>
#include <functional>
#include <stdio.h>
using namespace std;

long long MOD = 1000000007;

int main() {
    
    unsigned long long N;
    cin >> N;

    unsigned long long a = floor(sqrt(8*N+1));
    if ( a*a == 8*N+1 ) {
        cout << "YES" << endl;
        cout << (a-1)/2 << endl;
    }
    else { cout << "NO" << endl; }

    return 0;
}