23137313 has 4 divisors (see below), whose sum is σ = 23375940. Its totient is φ = 22898688.

The previous prime is 23137297. The next prime is 23137327. The reversal of 23137313 is 31373132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11075584 + 12061729 = 3328^2 + 3473^2 .

It is a cyclic number.

It is not a de Polignac number, because 23137313 - 2⁴ = 23137297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23137343) 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, 119168 + ... + 119361.

It is an arithmetic number, because the mean of its divisors is an integer number (5843985).

Almost surely, 2^23137313 is an apocalyptic number.

It is an amenable number.

23137313 is a deficient number, since it is larger than the sum of its proper divisors (238627).

23137313 is an equidigital number, since it uses as much as digits as its factorization.

23137313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238626.

The product of its digits is 1134, while the sum is 23.

The square root of 23137313 is about 4810.1260898234. The cubic root of 23137313 is about 284.9515173505.

The spelling of 23137313 in words is "twenty-three million, one hundred thirty-seven thousand, three hundred thirteen".