231075 has 36 divisors (see below), whose sum is σ = 451360. Its totient is φ = 112320.

The previous prime is 231067. The next prime is 231079. The reversal of 231075 is 570132.

231075 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 231075 - 2³ = 231067 is a prime.

231075 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (231079) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2886 + ... + 2964.

2²³¹⁰⁷⁵ is an apocalyptic number.

231075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

231075 is a deficient number, since it is larger than the sum of its proper divisors (220285).

231075 is a wasteful number, since it uses less digits than its factorization.

231075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 100 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 231075 is about 480.7026107689. The cubic root of 231075 is about 61.3645641461.

The spelling of 231075 in words is "two hundred thirty-one thousand, seventy-five".