23157275 has 12 divisors (see below), whose sum is σ = 28783872. Its totient is φ = 18481440.

The previous prime is 23157271. The next prime is 23157287. The reversal of 23157275 is 57275132.

It is not a de Polignac number, because 23157275 - 2² = 23157271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23157271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13094 + ... + 14756.

It is an arithmetic number, because the mean of its divisors is an integer number (2398656).

Almost surely, 2^23157275 is an apocalyptic number.

23157275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23157275 is a deficient number, since it is larger than the sum of its proper divisors (5626597).

23157275 is a wasteful number, since it uses less digits than its factorization.

23157275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230 (or 2225 counting only the distinct ones).

The product of its digits is 14700, while the sum is 32.

The square root of 23157275 is about 4812.2006400399. The cubic root of 23157275 is about 285.0334422643.

It can be divided in two parts, 23157 and 275, that added together give a palindrome (23432).

The spelling of 23157275 in words is "twenty-three million, one hundred fifty-seven thousand, two hundred seventy-five".