23455157 has 16 divisors (see below), whose sum is σ = 26478144. Its totient is φ = 20592000.

The previous prime is 23455153. The next prime is 23455163. The reversal of 23455157 is 75155432.

It is not a de Polignac number, because 23455157 - 2² = 23455153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23455153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58883 + ... + 59279.

It is an arithmetic number, because the mean of its divisors is an integer number (1654884).

Almost surely, 2^23455157 is an apocalyptic number.

It is an amenable number.

23455157 is a deficient number, since it is larger than the sum of its proper divisors (3022987).

23455157 is a wasteful number, since it uses less digits than its factorization.

23455157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its digits is 21000, while the sum is 32.

The square root of 23455157 is about 4843.0524465465. The cubic root of 23455157 is about 286.2504082678.

The spelling of 23455157 in words is "twenty-three million, four hundred fifty-five thousand, one hundred fifty-seven".