23136239 has 8 divisors (see below), whose sum is σ = 26836608. Its totient is φ = 19534680.

The previous prime is 23136221. The next prime is 23136247. The reversal of 23136239 is 93263132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23136239 - 2¹⁶ = 23070703 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 (23136299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24197 + ... + 25134.

It is an arithmetic number, because the mean of its divisors is an integer number (3354576).

Almost surely, 2^23136239 is an apocalyptic number.

23136239 is a deficient number, since it is larger than the sum of its proper divisors (3700369).

23136239 is an equidigital number, since it uses as much as digits as its factorization.

23136239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49405.

The product of its digits is 5832, while the sum is 29.

The square root of 23136239 is about 4810.0144490427. The cubic root of 23136239 is about 284.9471082723.

The spelling of 23136239 in words is "twenty-three million, one hundred thirty-six thousand, two hundred thirty-nine".