23161232 has 20 divisors (see below), whose sum is σ = 44950620. Its totient is φ = 11561088.

The previous prime is 23161199. The next prime is 23161241. The reversal of 23161232 is 23216132.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 541696 + 22619536 = 736^2 + 4756^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15494 + ... + 16922.

It is an arithmetic number, because the mean of its divisors is an integer number (2247531).

Almost surely, 2^23161232 is an apocalyptic number.

It is an amenable number.

23161232 is a deficient number, since it is larger than the sum of its proper divisors (21789388).

23161232 is a wasteful number, since it uses less digits than its factorization.

23161232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450 (or 2444 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 23161232 is about 4812.6117649360. The cubic root of 23161232 is about 285.0496763720.

Adding to 23161232 its reverse (23216132), we get a palindrome (46377364).

The spelling of 23161232 in words is "twenty-three million, one hundred sixty-one thousand, two hundred thirty-two".