831132 has 18 divisors (see below), whose sum is σ = 2101008. Its totient is φ = 277032.

The previous prime is 831109. The next prime is 831139. The reversal of 831132 is 231138.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831139) by changing a digit.

831132 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 5 ways as a sum of consecutive naturals, for example, 11508 + ... + 11579.

2⁸³¹¹³² is an apocalyptic number.

It is an amenable number.

831132 is an abundant number, since it is smaller than the sum of its proper divisors (1269876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

831132 is a wasteful number, since it uses less digits than its factorization.

831132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23097 (or 23092 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 831132 is about 911.6644119411. The cubic root of 831132 is about 94.0206684595.

The spelling of 831132 in words is "eight hundred thirty-one thousand, one hundred thirty-two".