231573238 has 8 divisors (see below), whose sum is σ = 374079888. Its totient is φ = 106879944.

The previous prime is 231573233. The next prime is 231573281. The reversal of 231573238 is 832375132.

231573238 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231573233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4453306 + ... + 4453357.

It is an arithmetic number, because the mean of its divisors is an integer number (46759986).

Almost surely, 2^231573238 is an apocalyptic number.

231573238 is a deficient number, since it is larger than the sum of its proper divisors (142506650).

231573238 is a wasteful number, since it uses less digits than its factorization.

231573238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8906678.

The product of its digits is 30240, while the sum is 34.

The square root of 231573238 is about 15217.5306143934. The cubic root of 231573238 is about 614.0863671934.

The spelling of 231573238 in words is "two hundred thirty-one million, five hundred seventy-three thousand, two hundred thirty-eight".