23107139 has 4 divisors (see below), whose sum is σ = 25207800. Its totient is φ = 21006480.

The previous prime is 23107093. The next prime is 23107141. The reversal of 23107139 is 93170132.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 23107139 - 2⁸ = 23106883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23107169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050314 + ... + 1050335.

It is an arithmetic number, because the mean of its divisors is an integer number (6301950).

Almost surely, 2^23107139 is an apocalyptic number.

23107139 is a deficient number, since it is larger than the sum of its proper divisors (2100661).

23107139 is a wasteful number, since it uses less digits than its factorization.

23107139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100660.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 23107139 is about 4806.9885583388. The cubic root of 23107139 is about 284.8275924522.

It can be divided in two parts, 2310 and 7139, that added together give a palindrome (9449).

The spelling of 23107139 in words is "twenty-three million, one hundred seven thousand, one hundred thirty-nine".