22831 has 6 divisors (see below), whose sum is σ = 24560. Its totient is φ = 21216.

The previous prime is 22817. The next prime is 22853. The reversal of 22831 is 13822.

It is a happy number.

It is not a de Polignac number, because 22831 - 2¹³ = 14639 is a prime.

It is a super-2 number, since 2×22831² = 1042509122, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (96) is a multiple of the sum of its prime divisors (96).

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22811) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250 + ... + 328.

2²²⁸³¹ is an apocalyptic number.

22831 is a deficient number, since it is larger than the sum of its proper divisors (1729).

22831 is an equidigital number, since it uses as much as digits as its factorization.

22831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113 (or 96 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 22831 is about 151.0993050944. The cubic root of 22831 is about 28.3688443632.

Subtracting from 22831 its reverse (13822), we obtain a palindrome (9009).

The spelling of 22831 in words is "twenty-two thousand, eight hundred thirty-one".