263233231 has 4 divisors (see below), whose sum is σ = 263311272. Its totient is φ = 263155192.

The previous prime is 263233193. The next prime is 263233237. The reversal of 263233231 is 132332362.

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

It is a cyclic number.

It is not a de Polignac number, because 263233231 - 2¹¹ = 263231183 is a prime.

It is a super-2 number, since 2×263233231² = 138583467805398722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263233196 and 263233205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263233237) 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, 33721 + ... + 40786.

It is an arithmetic number, because the mean of its divisors is an integer number (65827818).

Almost surely, 2^263233231 is an apocalyptic number.

263233231 is a deficient number, since it is larger than the sum of its proper divisors (78041).

263233231 is an equidigital number, since it uses as much as digits as its factorization.

263233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78040.

The product of its digits is 3888, while the sum is 25.

The square root of 263233231 is about 16224.4639664921. The cubic root of 263233231 is about 640.8851935681.

Adding to 263233231 its reverse (132332362), we get a palindrome (395565593).

The spelling of 263233231 in words is "two hundred sixty-three million, two hundred thirty-three thousand, two hundred thirty-one".