231875 has 20 divisors (see below), whose sum is σ = 337392. Its totient is φ = 156000.

The previous prime is 231871. The next prime is 231877. The reversal of 231875 is 578132.

231875 is nontrivially palindromic in base 12.

231875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231875 - 2² = 231871 is a prime.

It is a Duffinian number.

Its product of digits (1680) is a multiple of the sum of its prime factors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231871) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4349 + ... + 4401.

231875 is a Friedman number, since it can be written as 371*5^(8/2), using all its digits and the basic arithmetic operations.

2²³¹⁸⁷⁵ is an apocalyptic number.

231875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231875 is a deficient number, since it is larger than the sum of its proper divisors (105517).

231875 is an frugal number, since it uses more digits than its factorization.

231875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 65 counting only the distinct ones).

The product of its digits is 1680, while the sum is 26.

The square root of 231875 is about 481.5340071065. The cubic root of 231875 is about 61.4352989104.

The spelling of 231875 in words is "two hundred thirty-one thousand, eight hundred seventy-five".