23157497 has 8 divisors (see below), whose sum is σ = 25879392. Its totient is φ = 20538400.

The previous prime is 23157493. The next prime is 23157503. The reversal of 23157497 is 79475132.

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 23157497 - 2² = 23157493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23157497.

It is not an unprimeable number, because it can be changed into a prime (23157493) 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, 25223 + ... + 26124.

It is an arithmetic number, because the mean of its divisors is an integer number (3234924).

Almost surely, 2^23157497 is an apocalyptic number.

It is an amenable number.

23157497 is a deficient number, since it is larger than the sum of its proper divisors (2721895).

23157497 is a wasteful number, since it uses less digits than its factorization.

23157497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51399.

The product of its digits is 52920, while the sum is 38.

The square root of 23157497 is about 4812.2237063545. The cubic root of 23157497 is about 285.0343530971.

The spelling of 23157497 in words is "twenty-three million, one hundred fifty-seven thousand, four hundred ninety-seven".