#include <iostream>
#include <stdio.h>
#include <string.h>
#include <vector>
#include <string>
#include <set>
#include <map>
#include <algorithm>
#include <numeric>
#include <queue>
#include <cassert>
#include <cmath>
#include <bitset>
using namespace std;

int main() {
  long long n;
  cin >> n;
  long long ok = 1;
  long long ng = 2e9;
  while (ok+1 < ng) {
    long long x = (ok+ng)/2;
    if (x*(x+1) <= n*2) ok = x;
    else ng = x;
  }
  if (ok*(ok+1) == n*2) cout << "YES\n" << ok << endl;
  else cout << "NO" << endl;
}