#include <bits/stdc++.h>

using namespace std;
#define endl "\n"
typedef long long ll;
#define int long long
int n;
void solved() {
  cin >> n;
  int l = 1, r = 2e9;
  while (l < r) {
    int x = (l + r) >> 1;
    if ((1 + x) * x / 2 >= n)
      r = x;
    else
      l = x + 1;
  }
  if ((1 + l) * l / 2 != n)
    cout << "NO" << endl;
  else {
    cout << "YES" << endl;
    cout << l << endl;
  }
}
signed main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  /*int t = 1;
  cin >> t;
  while (t--)*/
  solved();

  return 0;
}