136438564 has 12 divisors (see below), whose sum is σ = 246469888. Its totient is φ = 66018600.

The previous prime is 136438543. The next prime is 136438567. The reversal of 136438564 is 465834631.

It is not an unprimeable number, because it can be changed into a prime (136438567) 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, 550032 + ... + 550279.

Almost surely, 2^136438564 is an apocalyptic number.

It is an amenable number.

136438564 is a deficient number, since it is larger than the sum of its proper divisors (110031324).

136438564 is a wasteful number, since it uses less digits than its factorization.

136438564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100346 (or 1100344 counting only the distinct ones).

The product of its digits is 207360, while the sum is 40.

The square root of 136438564 is about 11680.6919315595. The cubic root of 136438564 is about 514.8085051704.

The spelling of 136438564 in words is "one hundred thirty-six million, four hundred thirty-eight thousand, five hundred sixty-four".