#include <iostream>
using namespace std;
int main(){
  long long n;cin>>n;
  long long mn = 0;
  long long mx = 2000000000;
  long long ce = (mn+mx)/2;
  while(mx-mn > 1){
    if(ce*(ce+1)/2 > n){
      mx = ce;
    }else if(ce*(ce+1)/2 == n){
      cout << "YES" << endl;
      cout << ce << endl;
      return 0;
    }else{
      mn = ce;
    }
    ce = (mx+mn)/2;
  }
  cout << "NO" << endl;
}