#include <bits/stdc++.h>
using namespace std;
#define rep(i, m, n) for (int i = m; i < n; ++i)
#define rem(i, m, n) for (int i = m; i >= n; --i)
typedef long long ll;

int main(){
  ll N;
  cin >> N;
  ll l = 0;
  ll r = 2e9;
  ll mid;
  rep(i, 0, 100) {
    mid = (l + r) / 2;
    ll sum = mid * (mid + 1) / 2;
    if(sum >= N) r = mid;
    else l = mid;
  }
  if(r * (r + 1) / 2 == N) {
    cout << "YES" << endl;
    cout << r << endl;
  } else cout << "NO" << endl;
  return 0;
}