23500136 has 32 divisors (see below), whose sum is σ = 48487680. Its totient is φ = 10677040.

The previous prime is 23500133. The next prime is 23500157. The reversal of 23500136 is 63100532.

It is not an unprimeable number, because it can be changed into a prime (23500133) 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, 9545 + ... + 11751.

It is an arithmetic number, because the mean of its divisors is an integer number (1515240).

Almost surely, 2^23500136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23500136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24243840).

23500136 is an abundant number, since it is smaller than the sum of its proper divisors (24987544).

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

23500136 is a wasteful number, since it uses less digits than its factorization.

23500136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246 (or 2220 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 23500136 is about 4847.6938847250. The cubic root of 23500136 is about 286.4332683491.

Adding to 23500136 its reverse (63100532), we get a palindrome (86600668).

The spelling of 23500136 in words is "twenty-three million, five hundred thousand, one hundred thirty-six".