23137197 has 4 divisors (see below), whose sum is σ = 30849600. Its totient is φ = 15424796.

The previous prime is 23137171. The next prime is 23137201. The reversal of 23137197 is 79173132.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23137197 - 2⁸ = 23136941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23137297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3856197 + ... + 3856202.

It is an arithmetic number, because the mean of its divisors is an integer number (7712400).

Almost surely, 2^23137197 is an apocalyptic number.

It is an amenable number.

23137197 is a deficient number, since it is larger than the sum of its proper divisors (7712403).

23137197 is an equidigital number, since it uses as much as digits as its factorization.

23137197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7712402.

The product of its digits is 7938, while the sum is 33.

The square root of 23137197 is about 4810.1140319123. The cubic root of 23137197 is about 284.9510411438.

The spelling of 23137197 in words is "twenty-three million, one hundred thirty-seven thousand, one hundred ninety-seven".