#include <bits/stdc++.h>
using namespace std;
#define REP(i,a,n) for(int i=(a); i<(int)(n); i++)
#define rep(i,n) REP(i,0,n)
#define FOR(it,c) for(__typeof((c).begin()) it=(c).begin(); it!=(c).end(); ++it)
#define ALLOF(c) (c).begin(), (c).end()
typedef long long ll;
typedef unsigned long long ull;


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

  ll lb=-1, ub=1e10;
  while(ub-lb>1){
    ll m = lb + (ub-lb)/2LL;

    ll sum = m * (m+1) / 2LL;
    if(sum<=n) lb = m;
    else ub = m;
  }

  if(lb*(lb+1) == 2LL*n){
    cout << "YES" << endl;
    cout << lb << endl;
  }else{
    cout << "NO" << endl;
  }
  
  return 0;
}