def make_divisors(n):
    divisors = []
    for i in range(1, int(n**0.5)+1):
        if n % i == 0:
            divisors.append(i)
            if i != n // i:
                divisors.append(n//i)

    divisors.sort()
    return divisors


a = int(input())
a *= 2
for d in make_divisors(a):
    if d >= 3 and a // d > d and (a // d - d) % 2 == 1:
        print('YES')
        break
else:
    print('NO')