#include<bits/stdc++.h>

using namespace std;

using int64 = long long;

int main()
{
  int64 X;
  cin >> X;

  int64 myon = .5 * (sqrt(8 * (double) X + 1) - 1);
  for(int64 i = max(1LL, myon - 15000); i <= myon + 15000; i++) {
    if(i * (i + 1) == X * 2) {
      cout << "YES" << endl;
      cout << i << endl;
      return (0);
    }
  }
  cout << "NO" << endl;
}