23525139 has 8 divisors (see below), whose sum is σ = 34218432. Its totient is φ = 14257640.

The previous prime is 23525071. The next prime is 23525141. The reversal of 23525139 is 93152532.

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 23525139 - 2¹¹ = 23523091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23525639) 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, 356409 + ... + 356474.

It is an arithmetic number, because the mean of its divisors is an integer number (4277304).

Almost surely, 2^23525139 is an apocalyptic number.

23525139 is a deficient number, since it is larger than the sum of its proper divisors (10693293).

23525139 is a wasteful number, since it uses less digits than its factorization.

23525139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712897.

The product of its digits is 8100, while the sum is 30.

The square root of 23525139 is about 4850.2720542254. The cubic root of 23525139 is about 286.5348160254.

The spelling of 23525139 in words is "twenty-three million, five hundred twenty-five thousand, one hundred thirty-nine".