23158457 has 8 divisors (see below), whose sum is σ = 27320832. Its totient is φ = 19209600.

The previous prime is 23158453. The next prime is 23158463. The reversal of 23158457 is 75485132.

It is a happy number.

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 23158457 - 2² = 23158453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23158453) 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, 53144 + ... + 53577.

It is an arithmetic number, because the mean of its divisors is an integer number (3415104).

Almost surely, 2^23158457 is an apocalyptic number.

It is an amenable number.

23158457 is a deficient number, since it is larger than the sum of its proper divisors (4162375).

23158457 is a wasteful number, since it uses less digits than its factorization.

23158457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106759.

The product of its digits is 33600, while the sum is 35.

The square root of 23158457 is about 4812.3234513071. The cubic root of 23158457 is about 285.0382917669.

The spelling of 23158457 in words is "twenty-three million, one hundred fifty-eight thousand, four hundred fifty-seven".