231459 has 4 divisors (see below), whose sum is σ = 308616. Its totient is φ = 154304.

The previous prime is 231443. The next prime is 231461. The reversal of 231459 is 954132.

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 231459 - 2⁴ = 231443 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231459.

It is not an unprimeable number, because it can be changed into a prime (231409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38574 + ... + 38579.

It is an arithmetic number, because the mean of its divisors is an integer number (77154).

2²³¹⁴⁵⁹ is an apocalyptic number.

231459 is a deficient number, since it is larger than the sum of its proper divisors (77157).

231459 is an equidigital number, since it uses as much as digits as its factorization.

231459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77156.

The product of its digits is 1080, while the sum is 24.

The square root of 231459 is about 481.1018603165. The cubic root of 231459 is about 61.3985371733.

The spelling of 231459 in words is "two hundred thirty-one thousand, four hundred fifty-nine".