238231 has 4 divisors (see below), whose sum is σ = 272272. Its totient is φ = 204192.

The previous prime is 238229. The next prime is 238237. The reversal of 238231 is 132832.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 238231 - 2¹ = 238229 is a prime.

It is a super-2 number, since 2×238231² = 113508018722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 238199 and 238208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238237) 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, 17010 + ... + 17023.

It is an arithmetic number, because the mean of its divisors is an integer number (68068).

2²³⁸²³¹ is an apocalyptic number.

238231 is a deficient number, since it is larger than the sum of its proper divisors (34041).

238231 is an equidigital number, since it uses as much as digits as its factorization.

238231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34040.

The product of its digits is 288, while the sum is 19.

The square root of 238231 is about 488.0891312045. The cubic root of 238231 is about 61.9915874816.

The spelling of 238231 in words is "two hundred thirty-eight thousand, two hundred thirty-one".