23159542 has 64 divisors (see below), whose sum is σ = 45010944. Its totient is φ = 8709120.

The previous prime is 23159531. The next prime is 23159611. The reversal of 23159542 is 24595132.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 317218 + ... + 317290.

It is an arithmetic number, because the mean of its divisors is an integer number (703296).

Almost surely, 2^23159542 is an apocalyptic number.

23159542 is a deficient number, since it is larger than the sum of its proper divisors (21851402).

23159542 is a wasteful number, since it uses less digits than its factorization.

23159542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173.

The product of its digits is 10800, while the sum is 31.

The square root of 23159542 is about 4812.4361813950. The cubic root of 23159542 is about 285.0427431532.

The spelling of 23159542 in words is "twenty-three million, one hundred fifty-nine thousand, five hundred forty-two".