23137580 has 24 divisors (see below), whose sum is σ = 49903728. Its totient is φ = 9004608.

The previous prime is 23137577. The next prime is 23137589. The reversal of 23137580 is 8573132.

It is not an unprimeable number, because it can be changed into a prime (23137589) 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, 14894 + ... + 16373.

It is an arithmetic number, because the mean of its divisors is an integer number (2079322).

Almost surely, 2^23137580 is an apocalyptic number.

23137580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23137580 is an abundant number, since it is smaller than the sum of its proper divisors (26766148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23137580 is a wasteful number, since it uses less digits than its factorization.

23137580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31313 (or 31311 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 23137580 is about 4810.1538436936. The cubic root of 23137580 is about 284.9526134409.

The spelling of 23137580 in words is "twenty-three million, one hundred thirty-seven thousand, five hundred eighty".