229331 has 4 divisors (see below), whose sum is σ = 233712. Its totient is φ = 224952.

The previous prime is 229321. The next prime is 229343. The reversal of 229331 is 133922.

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 229331 - 2⁶ = 229267 is a prime.

It is a super-2 number, since 2×229331² = 105185415122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229321) 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, 2111 + ... + 2216.

It is an arithmetic number, because the mean of its divisors is an integer number (58428).

2²²⁹³³¹ is an apocalyptic number.

229331 is a deficient number, since it is larger than the sum of its proper divisors (4381).

229331 is an equidigital number, since it uses as much as digits as its factorization.

229331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4380.

The product of its digits is 324, while the sum is 20.

The square root of 229331 is about 478.8851636875. The cubic root of 229331 is about 61.2097945222.

The spelling of 229331 in words is "two hundred twenty-nine thousand, three hundred thirty-one".