23087130 has 64 divisors (see below), whose sum is σ = 61890048. Its totient is φ = 5463360.

The previous prime is 23087123. The next prime is 23087137. The reversal of 23087130 is 3178032.

It is an interprime number because it is at equal distance from previous prime (23087123) and next prime (23087137).

It is a self number, because there is not a number n which added to its sum of digits gives 23087130.

It is not an unprimeable number, because it can be changed into a prime (23087137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13377 + ... + 15003.

It is an arithmetic number, because the mean of its divisors is an integer number (967032).

Almost surely, 2^23087130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23087130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30945024).

23087130 is an abundant number, since it is smaller than the sum of its proper divisors (38802918).

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

23087130 is a wasteful number, since it uses less digits than its factorization.

23087130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 23087130 is about 4804.9068669434. The cubic root of 23087130 is about 284.7453558025.

The spelling of 23087130 in words is "twenty-three million, eighty-seven thousand, one hundred thirty".