#define _USE_MATH_DEFINES
#include <cstdio>
#include <iostream>
#include <sstream>
#include <fstream>
#include <iomanip>
#include <algorithm>
#include <cmath>
#include <complex>
#include <string>
#include <vector>
#include <list>
#include <queue>
#include <stack>
#include <set>
#include <map>
#include <bitset>
#include <numeric>
#include <limits>
#include <climits>
#include <cfloat>
#include <functional>
#include <iterator>
using namespace std;

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

    long long left = 1;
    long long right = 2000000000;
    while(left < right){
        long long mid = (left + right) / 2;
        if(mid * (mid + 1) / 2 < n)
            left = mid + 1;
        else
            right = mid;
    }

    if(left * (left + 1) / 2 == n)
        cout << "YES" << endl << left << endl;
    else
        cout << "NO" << endl;

    return 0;
}