23565461 has 4 divisors (see below), whose sum is σ = 23575392. Its totient is φ = 23555532.

The previous prime is 23565449. The next prime is 23565467. The reversal of 23565461 is 16456532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, 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 23565461 - 2¹⁸ = 23303317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23565467) 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, 920 + ... + 6926.

It is an arithmetic number, because the mean of its divisors is an integer number (5893848).

Almost surely, 2^23565461 is an apocalyptic number.

It is an amenable number.

23565461 is a deficient number, since it is larger than the sum of its proper divisors (9931).

23565461 is an equidigital number, since it uses as much as digits as its factorization.

23565461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9930.

The product of its digits is 21600, while the sum is 32.

The square root of 23565461 is about 4854.4269486727. The cubic root of 23565461 is about 286.6984291169.

The spelling of 23565461 in words is "twenty-three million, five hundred sixty-five thousand, four hundred sixty-one".