23565136 has 20 divisors (see below), whose sum is σ = 52180192. Its totient is φ = 10099296.

The previous prime is 23565121. The next prime is 23565137. The reversal of 23565136 is 63156532.

It is a junction number, because it is equal to n+sod(n) for n = 23565098 and 23565107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23565137) 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, 105090 + ... + 105313.

Almost surely, 2^23565136 is an apocalyptic number.

It is an amenable number.

23565136 is an abundant number, since it is smaller than the sum of its proper divisors (28615056).

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

23565136 is a wasteful number, since it uses less digits than its factorization.

23565136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210418 (or 210412 counting only the distinct ones).

The product of its digits is 16200, while the sum is 31.

The square root of 23565136 is about 4854.3934739574. The cubic root of 23565136 is about 286.6971111227.

The spelling of 23565136 in words is "twenty-three million, five hundred sixty-five thousand, one hundred thirty-six".