231755 has 4 divisors (see below), whose sum is σ = 278112. Its totient is φ = 185400.

The previous prime is 231719. The next prime is 231779. The reversal of 231755 is 557132.

231755 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 231755 - 2¹⁶ = 166219 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 231755.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 231755.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23171 + ... + 23180.

It is an arithmetic number, because the mean of its divisors is an integer number (69528).

2²³¹⁷⁵⁵ is an apocalyptic number.

231755 is a deficient number, since it is larger than the sum of its proper divisors (46357).

231755 is an equidigital number, since it uses as much as digits as its factorization.

231755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46356.

The product of its digits is 1050, while the sum is 23.

The square root of 231755 is about 481.4093891897. The cubic root of 231755 is about 61.4246990786.

Adding to 231755 its reverse (557132), we get a palindrome (788887).

The spelling of 231755 in words is "two hundred thirty-one thousand, seven hundred fifty-five".