23465531 has 4 divisors (see below), whose sum is σ = 23475864. Its totient is φ = 23455200.

The previous prime is 23465527. The next prime is 23465567. The reversal of 23465531 is 13556432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 23465531 - 2² = 23465527 is a prime.

It is a super-2 number, since 2×23465531² = 1101262290223922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23465494 and 23465503.

It is not an unprimeable number, because it can be changed into a prime (23465581) 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, 110 + ... + 6851.

It is an arithmetic number, because the mean of its divisors is an integer number (5868966).

Almost surely, 2^23465531 is an apocalyptic number.

23465531 is a deficient number, since it is larger than the sum of its proper divisors (10333).

23465531 is an equidigital number, since it uses as much as digits as its factorization.

23465531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10332.

The product of its digits is 10800, while the sum is 29.

The square root of 23465531 is about 4844.1233469019. The cubic root of 23465531 is about 286.2926040208.

Subtracting from 23465531 its reverse (13556432), we obtain a palindrome (9909099).

The spelling of 23465531 in words is "twenty-three million, four hundred sixty-five thousand, five hundred thirty-one".