import java.util.*;
import java.io.*;
public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		PrintWriter ou = new PrintWriter(System.out);
		int a = Integer.parseInt(sc.next()) - 3;
		boolean s = true;
		for(int i = 3 ; s && a >= 0 ; i++){
			a -= i;
			if(a % i == 0){
				ou.println("YES");
				s = false;
			}
		}
		if(s) ou.println("NO");
		ou.flush();
		sc.close();
	}
}