23081159 has 4 divisors (see below), whose sum is σ = 23139120. Its totient is φ = 23023200.

The previous prime is 23081137. The next prime is 23081173. The reversal of 23081159 is 95118032.

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 23081159 - 2¹² = 23077063 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 (23080159) 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, 28379 + ... + 29180.

It is an arithmetic number, because the mean of its divisors is an integer number (5784780).

Almost surely, 2^23081159 is an apocalyptic number.

23081159 is a deficient number, since it is larger than the sum of its proper divisors (57961).

23081159 is an equidigital number, since it uses as much as digits as its factorization.

23081159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57960.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 23081159 is about 4804.2854827747. The cubic root of 23081159 is about 284.7208058893.

The spelling of 23081159 in words is "twenty-three million, eighty-one thousand, one hundred fifty-nine".