23900139 has 6 divisors (see below), whose sum is σ = 34522436. Its totient is φ = 15933420.

The previous prime is 23900137. The next prime is 23900153. The reversal of 23900139 is 93100932.

It is not a de Polignac number, because 23900139 - 2¹ = 23900137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23900137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1327777 + ... + 1327794.

Almost surely, 2^23900139 is an apocalyptic number.

23900139 is a deficient number, since it is larger than the sum of its proper divisors (10622297).

23900139 is a wasteful number, since it uses less digits than its factorization.

23900139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655577 (or 2655574 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 23900139 is about 4888.7768408877. The cubic root of 23900139 is about 288.0492898855.

The spelling of 23900139 in words is "twenty-three million, nine hundred thousand, one hundred thirty-nine".