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

int main(void)
{
	int N;
	int i;
	int nums = 0,temp;

	scanf("%d",&N);
	for (i = 1; i <= N; i++)
	{
		temp = (int)(((1 - 2*i) + sqrt((double)(4*i*i-4*i+1+8*N)))/2.0);
		
		if(temp >= 1) {
			if (N == (temp*i + temp*(temp-1)/2))
			{
				nums++;
			}
			else if (N == ((temp+1)*i + temp*(temp+1)/2))
			{
				nums++;
			}
		}
	}
	printf("%d\n",nums);
	
	return 0;
}