23144136 has 16 divisors (see below), whose sum is σ = 57860400. Its totient is φ = 7714704.

The previous prime is 23144111. The next prime is 23144137. The reversal of 23144136 is 63144132.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 964339 = 23144136 / (2 + 3 + 1 + 4 + 4 + 1 + 3 + 6).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (23144137) 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, 482146 + ... + 482193.

It is an arithmetic number, because the mean of its divisors is an integer number (3616275).

Almost surely, 2^23144136 is an apocalyptic number.

It is an amenable number.

23144136 is an abundant number, since it is smaller than the sum of its proper divisors (34716264).

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

23144136 is a wasteful number, since it uses less digits than its factorization.

23144136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964348 (or 964344 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 23144136 is about 4810.8352705118. The cubic root of 23144136 is about 284.9795245370.

Adding to 23144136 its reverse (63144132), we get a palindrome (86288268).

The spelling of 23144136 in words is "twenty-three million, one hundred forty-four thousand, one hundred thirty-six".