23139124 has 6 divisors (see below), whose sum is σ = 40493474. Its totient is φ = 11569560.

The previous prime is 23139121. The next prime is 23139139. The reversal of 23139124 is 42193132.

It can be written as a sum of positive squares in only one way, i.e., 16728100 + 6411024 = 4090^2 + 2532^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23139121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2892387 + ... + 2892394.

Almost surely, 2^23139124 is an apocalyptic number.

It is an amenable number.

23139124 is a deficient number, since it is larger than the sum of its proper divisors (17354350).

23139124 is a wasteful number, since it uses less digits than its factorization.

23139124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5784785 (or 5784783 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

The square root of 23139124 is about 4810.3143348434. The cubic root of 23139124 is about 284.9589517161.

The spelling of 23139124 in words is "twenty-three million, one hundred thirty-nine thousand, one hundred twenty-four".