831255 has 16 divisors (see below), whose sum is σ = 1342464. Its totient is φ = 439200.

The previous prime is 831253. The next prime is 831287. The reversal of 831255 is 552138.

It is not a de Polignac number, because 831255 - 2¹ = 831253 is a prime.

831255 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2082 + ... + 2448.

It is an arithmetic number, because the mean of its divisors is an integer number (83904).

2⁸³¹²⁵⁵ is an apocalyptic number.

831255 is a deficient number, since it is larger than the sum of its proper divisors (511209).

831255 is a wasteful number, since it uses less digits than its factorization.

831255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its digits is 1200, while the sum is 24.

The square root of 831255 is about 911.7318684789. The cubic root of 831255 is about 94.0253062996.

The spelling of 831255 in words is "eight hundred thirty-one thousand, two hundred fifty-five".