#include <bits/stdc++.h>

using namespace std;

#define REP(i,n) for(int i=0; i<(int)(n); i++)
#define FOR(i,b,e) for (int i=(int)(b); i<(int)(e); i++)
#define ALL(x) (x).begin(), (x).end()

const double PI = acos(-1);

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);

  long long n;
  cin >> n;

  long long lo = 1;
  long long hi = 2 * (1LL<<30);

  while (hi - lo > 1) {
    long long mid = (lo + hi) / 2;
    if (n < mid * (mid + 1) / 2)
      hi = mid;
    else
      lo = mid;
  }
  
  if (lo * (lo+1) / 2 == n) {
    cout << "YES" << endl;
    cout << lo << endl;
  } else {
    cout << "NO" << endl;
  }
  
  return 0;
}