23244139 has 2 divisors, whose sum is σ = 23244140. Its totient is φ = 23244138.

The previous prime is 23244131. The next prime is 23244161. The reversal of 23244139 is 93144232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23244139 - 2³ = 23244131 is a prime.

It is not a weakly prime, because it can be changed into another prime (23244131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11622069 + 11622070.

It is an arithmetic number, because the mean of its divisors is an integer number (11622070).

Almost surely, 2^23244139 is an apocalyptic number.

23244139 is a deficient number, since it is larger than the sum of its proper divisors (1).

23244139 is an equidigital number, since it uses as much as digits as its factorization.

23244139 is an evil number, because the sum of its binary digits is even.

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

The square root of 23244139 is about 4821.2175848016. The cubic root of 23244139 is about 285.3893887464.

The spelling of 23244139 in words is "twenty-three million, two hundred forty-four thousand, one hundred thirty-nine".