23183261 has 4 divisors (see below), whose sum is σ = 23476800. Its totient is φ = 22889724.

The previous prime is 23183243. The next prime is 23183263. The reversal of 23183261 is 16238132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23183261 - 2⁶ = 23183197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23183261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23183263) 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, 146651 + ... + 146808.

It is an arithmetic number, because the mean of its divisors is an integer number (5869200).

Almost surely, 2^23183261 is an apocalyptic number.

It is an amenable number.

23183261 is a deficient number, since it is larger than the sum of its proper divisors (293539).

23183261 is an equidigital number, since it uses as much as digits as its factorization.

23183261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293538.

The product of its digits is 1728, while the sum is 26.

The square root of 23183261 is about 4814.8998951172. The cubic root of 23183261 is about 285.1400194300.

It can be divided in two parts, 231 and 83261, that multiplied together give a palindrome (19233291).

The spelling of 23183261 in words is "twenty-three million, one hundred eighty-three thousand, two hundred sixty-one".