24232139 has 4 divisors (see below), whose sum is σ = 25067760. Its totient is φ = 23396520.

The previous prime is 24232129. The next prime is 24232171. The reversal of 24232139 is 93123242.

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

It is a cyclic number.

It is not a de Polignac number, because 24232139 - 2¹⁶ = 24166603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (24232129) 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, 417767 + ... + 417824.

It is an arithmetic number, because the mean of its divisors is an integer number (6266940).

Almost surely, 2^24232139 is an apocalyptic number.

24232139 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

24232139 is a deficient number, since it is larger than the sum of its proper divisors (835621).

24232139 is an equidigital number, since it uses as much as digits as its factorization.

24232139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835620.

The product of its digits is 2592, while the sum is 26.

The square root of 24232139 is about 4922.6150570606. The cubic root of 24232139 is about 289.3769381793.

The spelling of 24232139 in words is "twenty-four million, two hundred thirty-two thousand, one hundred thirty-nine".