23158857 has 8 divisors (see below), whose sum is σ = 31402080. Its totient is φ = 15177440.

The previous prime is 23158823. The next prime is 23158859. The reversal of 23158857 is 75885132.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23158857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23158859) 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, 65244 + ... + 65597.

It is an arithmetic number, because the mean of its divisors is an integer number (3925260).

Almost surely, 2^23158857 is an apocalyptic number.

It is an amenable number.

23158857 is a deficient number, since it is larger than the sum of its proper divisors (8243223).

23158857 is a wasteful number, since it uses less digits than its factorization.

23158857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130903.

The product of its digits is 67200, while the sum is 39.

The square root of 23158857 is about 4812.3650110938. The cubic root of 23158857 is about 285.0399328471.

The spelling of 23158857 in words is "twenty-three million, one hundred fifty-eight thousand, eight hundred fifty-seven".