23930531 has 4 divisors (see below), whose sum is σ = 23968392. Its totient is φ = 23892672.

The previous prime is 23930513. The next prime is 23930537. The reversal of 23930531 is 13503932.

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

It is a cyclic number.

It is not a de Polignac number, because 23930531 - 2¹⁴ = 23914147 is a prime.

It is a super-2 number, since 2×23930531² = 1145340627883922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23930531.

It is not an unprimeable number, because it can be changed into a prime (23930537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17966 + ... + 19251.

It is an arithmetic number, because the mean of its divisors is an integer number (5992098).

Almost surely, 2^23930531 is an apocalyptic number.

23930531 is a deficient number, since it is larger than the sum of its proper divisors (37861).

23930531 is an equidigital number, since it uses as much as digits as its factorization.

23930531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37860.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 23930531 is about 4891.8841973211. The cubic root of 23930531 is about 288.1713350038.

The spelling of 23930531 in words is "twenty-three million, nine hundred thirty thousand, five hundred thirty-one".