229231 has 4 divisors (see below), whose sum is σ = 234864. Its totient is φ = 223600.

The previous prime is 229223. The next prime is 229237. The reversal of 229231 is 132922.

It is a happy number.

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 229231 - 2³ = 229223 is a prime.

It is a super-2 number, since 2×229231² = 105093702722, 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 = 229199 and 229208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229237) 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, 2755 + ... + 2836.

It is an arithmetic number, because the mean of its divisors is an integer number (58716).

2²²⁹²³¹ is an apocalyptic number.

229231 is a deficient number, since it is larger than the sum of its proper divisors (5633).

229231 is an equidigital number, since it uses as much as digits as its factorization.

229231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5632.

The product of its digits is 216, while the sum is 19.

The square root of 229231 is about 478.7807431382. The cubic root of 229231 is about 61.2008963658.

The spelling of 229231 in words is "two hundred twenty-nine thousand, two hundred thirty-one".