// yukicoder: No.648 おやすみ
// 2019.4.30 bal4u

#include <stdio.h>
#include <math.h>

int main()
{
	int s;
	long long n;

	scanf("%lld", &n);
	n <<= 3, n++;
	s = (int)sqrt((double)n);
	if ((long long)s*s != n || (s & 1) == 0) puts("NO");
	else {
		puts("YES");
		printf("%d\n", (s-1)>>1);
	}
	return 0;
}