import java.util.Scanner;

class Main{
	public static void main(String[]$){
		Scanner s=new Scanner(System.in);
		long n=s.nextLong();
		for(long i=(long)Math.sqrt(n*1.5);true;++i) {
			long v=i*(i+1)/2;
			if(v==n) {
				System.out.println("YES\n"+i);
				break;
			}else if(v>n) {
				System.out.println(v);
				System.out.println("NO");
				break;
			}
		}
	}
}