231259 has 4 divisors (see below), whose sum is σ = 264304. Its totient is φ = 198216.

The previous prime is 231241. The next prime is 231269. The reversal of 231259 is 952132.

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 231259 - 2⁷ = 231131 is a prime.

It is a Duffinian number.

231259 is a modest number, since divided by 259 gives 231 as remainder.

It is not an unprimeable number, because it can be changed into a prime (231269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16512 + ... + 16525.

It is an arithmetic number, because the mean of its divisors is an integer number (66076).

2²³¹²⁵⁹ is an apocalyptic number.

231259 is a deficient number, since it is larger than the sum of its proper divisors (33045).

231259 is an equidigital number, since it uses as much as digits as its factorization.

231259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33044.

The product of its digits is 540, while the sum is 22.

The square root of 231259 is about 480.8939592051. The cubic root of 231259 is about 61.3808475810.

The spelling of 231259 in words is "two hundred thirty-one thousand, two hundred fifty-nine".