23122530 has 32 divisors (see below), whose sum is σ = 61660800. Its totient is φ = 6165936.

The previous prime is 23122529. The next prime is 23122537. The reversal of 23122530 is 3522132.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (23122537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42550 + ... + 43089.

It is an arithmetic number, because the mean of its divisors is an integer number (1926900).

Almost surely, 2^23122530 is an apocalyptic number.

23122530 is an abundant number, since it is smaller than the sum of its proper divisors (38538270).

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

23122530 is a wasteful number, since it uses less digits than its factorization.

23122530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85655 (or 85649 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23122530 is about 4808.5891901887. The cubic root of 23122530 is about 284.8908169032.

Adding to 23122530 its reverse (3522132), we get a palindrome (26644662).

The spelling of 23122530 in words is "twenty-three million, one hundred twenty-two thousand, five hundred thirty".