23139458 has 8 divisors (see below), whose sum is σ = 34767120. Its totient is φ = 11550420.

The previous prime is 23139443. The next prime is 23139481. The reversal of 23139458 is 85493132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8108 + ... + 10583.

It is an arithmetic number, because the mean of its divisors is an integer number (4345890).

Almost surely, 2^23139458 is an apocalyptic number.

23139458 is a deficient number, since it is larger than the sum of its proper divisors (11627662).

23139458 is a wasteful number, since it uses less digits than its factorization.

23139458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19312.

The product of its digits is 25920, while the sum is 35.

The square root of 23139458 is about 4810.3490517841. The cubic root of 23139458 is about 284.9603227826.

The spelling of 23139458 in words is "twenty-three million, one hundred thirty-nine thousand, four hundred fifty-eight".