231485 has 8 divisors (see below), whose sum is σ = 282336. Its totient is φ = 182160.

The previous prime is 231481. The next prime is 231493. The reversal of 231485 is 584132.

231485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 231485 - 2² = 231481 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231481) 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, 11 + ... + 680.

It is an arithmetic number, because the mean of its divisors is an integer number (35292).

2²³¹⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

231485 is a deficient number, since it is larger than the sum of its proper divisors (50851).

231485 is an equidigital number, since it uses as much as digits as its factorization.

231485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763.

The product of its digits is 960, while the sum is 23.

The square root of 231485 is about 481.1288808625. The cubic root of 231485 is about 61.4008360718.

The spelling of 231485 in words is "two hundred thirty-one thousand, four hundred eighty-five".