23144239 has 4 divisors (see below), whose sum is σ = 23246424. Its totient is φ = 23042056.

The previous prime is 23144237. The next prime is 23144243. The reversal of 23144239 is 93244132.

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 23144239 - 2¹ = 23144237 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 (23144237) 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, 50752 + ... + 51205.

It is an arithmetic number, because the mean of its divisors is an integer number (5811606).

Almost surely, 2^23144239 is an apocalyptic number.

23144239 is a deficient number, since it is larger than the sum of its proper divisors (102185).

23144239 is a wasteful number, since it uses less digits than its factorization.

23144239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102184.

The product of its digits is 5184, while the sum is 28.

The square root of 23144239 is about 4810.8459755016. The cubic root of 23144239 is about 284.9799472913.

The spelling of 23144239 in words is "twenty-three million, one hundred forty-four thousand, two hundred thirty-nine".