23131255 has 8 divisors (see below), whose sum is σ = 31722912. Its totient is φ = 15861408.

The previous prime is 23131249. The next prime is 23131289. The reversal of 23131255 is 55213132.

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 23131255 - 2¹⁵ = 23098487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330412 + ... + 330481.

It is an arithmetic number, because the mean of its divisors is an integer number (3965364).

Almost surely, 2^23131255 is an apocalyptic number.

23131255 is a deficient number, since it is larger than the sum of its proper divisors (8591657).

23131255 is an equidigital number, since it uses as much as digits as its factorization.

23131255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660905.

The product of its digits is 900, while the sum is 22.

The square root of 23131255 is about 4809.4963353765. The cubic root of 23131255 is about 284.9266457362.

Adding to 23131255 its reverse (55213132), we get a palindrome (78344387).

The spelling of 23131255 in words is "twenty-three million, one hundred thirty-one thousand, two hundred fifty-five".