#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <numeric>
#include <math.h>

using namespace std;

#define REP(i,n)	for(int i=0;i<(n);++i)
#define REPS(i,s,t)	for(int i=(s);i<(t);++i)

#define INF 		2000000007
#define MOD			1000000007
#define MAX 		100005


typedef unsigned int 			uint;
typedef unsigned long long int	ull;
typedef long long int ll;

//uint dp[MAX];

int main(){
	ull N;cin>>N;
	
	N = N*8+1;
	ull a = sqrt(N);
	if((a*a)==N){
		cout << "YES" << endl;
		cout << ((a-1)/2) << endl;
	}
	else
		cout << "NO" << endl;
	
	return 0;
}