23024139 has 4 divisors (see below), whose sum is σ = 30698856. Its totient is φ = 15349424.

The previous prime is 23024129. The next prime is 23024147. The reversal of 23024139 is 93142032.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23024139 is a prime.

It is a super-2 number, since 2×23024139² = 1060221953382642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23024119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3837354 + ... + 3837359.

It is an arithmetic number, because the mean of its divisors is an integer number (7674714).

Almost surely, 2^23024139 is an apocalyptic number.

23024139 is a deficient number, since it is larger than the sum of its proper divisors (7674717).

23024139 is an equidigital number, since it uses as much as digits as its factorization.

23024139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7674716.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 23024139 is about 4798.3475280559. The cubic root of 23024139 is about 284.4861532071.

It can be divided in two parts, 2302 and 4139, that added together give a triangular number (6441 = T₁₁₃).

The spelling of 23024139 in words is "twenty-three million, twenty-four thousand, one hundred thirty-nine".