def main():
    N = int(input())

    left = 0
    right = 10 ** 10
    mid = right // 2
    while 1:
        x = (mid * (mid + 1)) // 2
        if x == N:
            print('YES')
            print(mid)
            break
        elif right - left == 1:
            print('NO')
            break

        if x > N:
            right = mid
        else:
            left = mid
        mid = (left + right) // 2

main()