def oyasumi(n):
    p = ((8 * n + 1) ** (0.5) - 1) / 2
    p = int(p)
    for i in range(p, p + 3):
        if (i ** 2 + i) // 2 == n:
            return f'YES\n{i}'
    else:
        return 'NO'

def main():
    n = int(input())
    print(oyasumi(n))

if __name__ == '__main__':
    main()