23540911 has 4 divisors (see below), whose sum is σ = 23595712. Its totient is φ = 23486112.

The previous prime is 23540899. The next prime is 23540921. The reversal of 23540911 is 11904532.

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 23540911 - 2⁵ = 23540879 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 (23540921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26751 + ... + 27616.

It is an arithmetic number, because the mean of its divisors is an integer number (5898928).

Almost surely, 2^23540911 is an apocalyptic number.

23540911 is a deficient number, since it is larger than the sum of its proper divisors (54801).

23540911 is an equidigital number, since it uses as much as digits as its factorization.

23540911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54800.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 23540911 is about 4851.8976699844. The cubic root of 23540911 is about 286.5988357329.

The spelling of 23540911 in words is "twenty-three million, five hundred forty thousand, nine hundred eleven".