//Normal

#define _GLIBCXX_DEBUG
#define ll long long
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<int>>;

void print(auto a){
  cout << a;
}

void prints(auto a){
  cout << a << " ";
}

void prints(){
  cout << " ";
}

void printl(auto a){
  cout << a << endl;
}

void printl(){
  cout << endl;
}

void fix(int n){
  cout << fixed << setprecision(n);
}

int siz(string s){
  return (int)s.size();
}

int main(){
  ll N; cin >> N;

  ll ng = 0, ok = 2e9;
  while(ng+1 < ok){
    ll mid = (ng+ok)/2;

    N <= mid*(mid+1)/2 ? ok = mid : ng = mid;
  }

  if(N == ok*(ok+1)/2){
    printl("YES");
    printl(ok);
  }else{
    printl("NO");
  }

  return 0;
}