136438508 has 24 divisors (see below), whose sum is σ = 241832640. Its totient is φ = 67349520.

The previous prime is 136438501. The next prime is 136438537. The reversal of 136438508 is 805834631.

It is not an unprimeable number, because it can be changed into a prime (136438501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116735 + ... + 117897.

It is an arithmetic number, because the mean of its divisors is an integer number (10076360).

Almost surely, 2^136438508 is an apocalyptic number.

It is an amenable number.

136438508 is a deficient number, since it is larger than the sum of its proper divisors (105394132).

136438508 is a wasteful number, since it uses less digits than its factorization.

136438508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517 (or 1515 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 136438508 is about 11680.6895344410. The cubic root of 136438508 is about 514.8084347375.

The spelling of 136438508 in words is "one hundred thirty-six million, four hundred thirty-eight thousand, five hundred eight".