#include <bits/stdc++.h>
#define INF 2000000007LL
using namespace std;
typedef long long ll;
typedef pair<int,int> P;

ll a;

ll C(ll v){
	ll a1=v;
	a1*=(v+1LL);
	return a1/2LL;
}

int main(void){
	scanf("%lld",&a);
	ll l=0,r=INF;
	while(l+1LL<r){
		ll mid=(l+r)/2LL;
		if(C(mid)<=a)l=mid;
		else r=mid;
	}
	if(C(l)==a){
		printf("YES\n");
		printf("%lld\n",l);
	}else{
		printf("NO\n");
	}
	return 0;
}