23157045 has 24 divisors (see below), whose sum is σ = 40281696. Its totient is φ = 12306528.

The previous prime is 23157019. The next prime is 23157059. The reversal of 23157045 is 54075132.

It is a happy number.

It is not a de Polignac number, because 23157045 - 2⁶ = 23156981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14874 + ... + 16356.

It is an arithmetic number, because the mean of its divisors is an integer number (1678404).

Almost surely, 2^23157045 is an apocalyptic number.

It is an amenable number.

23157045 is a deficient number, since it is larger than the sum of its proper divisors (17124651).

23157045 is a wasteful number, since it uses less digits than its factorization.

23157045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1838 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 23157045 is about 4812.1767423901. The cubic root of 23157045 is about 285.0324986024.

The spelling of 23157045 in words is "twenty-three million, one hundred fifty-seven thousand, forty-five".