136390908 has 12 divisors (see below), whose sum is σ = 318245480. Its totient is φ = 45463632.

The previous prime is 136390879. The next prime is 136390909. The reversal of 136390908 is 809093631.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136390909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5682943 + ... + 5682966.

Almost surely, 2^136390908 is an apocalyptic number.

It is an amenable number.

136390908 is an abundant number, since it is smaller than the sum of its proper divisors (181854572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136390908 is a wasteful number, since it uses less digits than its factorization.

136390908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11365916 (or 11365914 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 136390908 is about 11678.6518057522. The cubic root of 136390908 is about 514.7485598236.

The spelling of 136390908 in words is "one hundred thirty-six million, three hundred ninety thousand, nine hundred eight".