168231 has 8 divisors (see below), whose sum is σ = 256384. Its totient is φ = 96120.

The previous prime is 168227. The next prime is 168247. The reversal of 168231 is 132861.

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

It is not a de Polignac number, because 168231 - 2² = 168227 is a prime.

It is a super-2 number, since 2×168231² = 56603338722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 8011 = 168231 / (1 + 6 + 8 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 168198 and 168207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3985 + ... + 4026.

It is an arithmetic number, because the mean of its divisors is an integer number (32048).

2¹⁶⁸²³¹ is an apocalyptic number.

168231 is a deficient number, since it is larger than the sum of its proper divisors (88153).

168231 is an equidigital number, since it uses as much as digits as its factorization.

168231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8021.

The product of its digits is 288, while the sum is 21.

The square root of 168231 is about 410.1597249853. The cubic root of 168231 is about 55.2037620834.

The spelling of 168231 in words is "one hundred sixty-eight thousand, two hundred thirty-one".