#include "bits/stdc++.h"
using namespace std;
#define ll long long int
#define rep(i,n) for( int i = 0; i < n; i++ )
#define rrep(i,n) for( int i = n; i >= 0; i-- )
#define REP(i,s,t) for( int i = s; i <= t; i++ )
#define RREP(i,s,t) for( int i = s; i >= t; i-- )
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define INF 2000000000
#define mod 1000000007
#define INF2 1000000000000000000
#define int long long

int f(int a) {
	return a * (a + 1) / 2;
}

signed main(void)
{
    cin.tie(0);
    ios::sync_with_stdio(false);
	int N; cin >> N;
	int start = sqrt(max(1LL, N * 2 - N / 1000000 - 100000));
	while(true) {
		//cout << f(start) << endl;
		if (f(start) > N) break;
		if (f(start) == N) {
			cout << "YES" << endl;
			cout << start << endl;
			return 0;
		}
		start++;
	}
	cout << "NO" << endl;
	return 0;

    return 0;
}