23144491 has 8 divisors (see below), whose sum is σ = 23496480. Its totient is φ = 22795008.

The previous prime is 23144483. The next prime is 23144503. The reversal of 23144491 is 19444132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23144491 - 2³ = 23144483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23144441) 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, 25650 + ... + 26536.

It is an arithmetic number, because the mean of its divisors is an integer number (2937060).

Almost surely, 2^23144491 is an apocalyptic number.

23144491 is a deficient number, since it is larger than the sum of its proper divisors (351989).

23144491 is an equidigital number, since it uses as much as digits as its factorization.

23144491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253.

The product of its digits is 3456, while the sum is 28.

The square root of 23144491 is about 4810.8721662501. The cubic root of 23144491 is about 284.9809815974.

The spelling of 23144491 in words is "twenty-three million, one hundred forty-four thousand, four hundred ninety-one".