using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var n = long.Parse(ReadLine());
        var ng = 0L;
        var ok = 2_000_000_000L;
        while (ok - ng > 1)
        {
            var mid = (ok + ng) / 2;
            var count = mid * (mid + 1) / 2;
            if (count >= n) ok = mid;
            else ng = mid;
        }
        if (ok * (ok + 1) / 2 == n)
        {
            WriteLine("YES");
            WriteLine(ok);
        }
        else WriteLine("NO");
    }
}