136843564 has 24 divisors (see below), whose sum is σ = 281343888. Its totient is φ = 57416640.

The previous prime is 136843559. The next prime is 136843571. The reversal of 136843564 is 465348631.

It is a super-2 number, since 2×136843564² = 37452322016444192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119047 + ... + 120190.

It is an arithmetic number, because the mean of its divisors is an integer number (11722662).

Almost surely, 2^136843564 is an apocalyptic number.

It is an amenable number.

136843564 is an abundant number, since it is smaller than the sum of its proper divisors (144500324).

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

136843564 is a wasteful number, since it uses less digits than its factorization.

136843564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239265 (or 239263 counting only the distinct ones).

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

The square root of 136843564 is about 11698.0153872356. The cubic root of 136843564 is about 515.3173825213.

The spelling of 136843564 in words is "one hundred thirty-six million, eight hundred forty-three thousand, five hundred sixty-four".