136684868 has 12 divisors (see below), whose sum is σ = 239475600. Its totient is φ = 68263272.

The previous prime is 136684861. The next prime is 136684897. The reversal of 136684868 is 868486631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (136684861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15818 + ... + 22881.

It is an arithmetic number, because the mean of its divisors is an integer number (19956300).

Almost surely, 2^136684868 is an apocalyptic number.

It is an amenable number.

136684868 is a deficient number, since it is larger than the sum of its proper divisors (102790732).

136684868 is a wasteful number, since it uses less digits than its factorization.

136684868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39586 (or 39584 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 50.

The square root of 136684868 is about 11691.2303886289. The cubic root of 136684868 is about 515.1181028036.

The spelling of 136684868 in words is "one hundred thirty-six million, six hundred eighty-four thousand, eight hundred sixty-eight".