263231 has 4 divisors (see below), whose sum is σ = 264264. Its totient is φ = 262200.

The previous prime is 263227. The next prime is 263239. The reversal of 263231 is 132362.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 263231 - 2² = 263227 is a prime.

It is a super-2 number, since 2×263231² = 138581118722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176 + ... + 746.

It is an arithmetic number, because the mean of its divisors is an integer number (66066).

2²⁶³²³¹ is an apocalyptic number.

263231 is a deficient number, since it is larger than the sum of its proper divisors (1033).

263231 is an equidigital number, since it uses as much as digits as its factorization.

263231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032.

The product of its digits is 216, while the sum is 17.

The square root of 263231 is about 513.0604252912. The cubic root of 263231 is about 64.0883382982.

Adding to 263231 its reverse (132362), we get a palindrome (395593).

It can be divided in two parts, 263 and 231, that added together give a palindrome (494).

The spelling of 263231 in words is "two hundred sixty-three thousand, two hundred thirty-one".