232123138 has 8 divisors (see below), whose sum is σ = 374968188. Its totient is φ = 107133744.

The previous prime is 232123039. The next prime is 232123139. The reversal of 232123138 is 831321232.

It can be written as a sum of positive squares in 2 ways, for example, as 175377049 + 56746089 = 13243^2 + 7533^2 .

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

It is not an unprimeable number, because it can be changed into a prime (232123139) 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, 4463881 + ... + 4463932.

Almost surely, 2^232123138 is an apocalyptic number.

232123138 is a deficient number, since it is larger than the sum of its proper divisors (142845050).

232123138 is a wasteful number, since it uses less digits than its factorization.

232123138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8927828.

The product of its digits is 1728, while the sum is 25.

The square root of 232123138 is about 15235.5878783853. The cubic root of 232123138 is about 614.5720582509.

The spelling of 232123138 in words is "two hundred thirty-two million, one hundred twenty-three thousand, one hundred thirty-eight".