229085 has 4 divisors (see below), whose sum is σ = 274908. Its totient is φ = 183264.

The previous prime is 229081. The next prime is 229093. The reversal of 229085 is 580922.

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

It can be written as a sum of positive squares in 2 ways, for example, as 148996 + 80089 = 386^2 + 283^2 .

It is a cyclic number.

It is not a de Polignac number, because 229085 - 2² = 229081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229081) 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, 22904 + ... + 22913.

It is an arithmetic number, because the mean of its divisors is an integer number (68727).

2²²⁹⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

229085 is a deficient number, since it is larger than the sum of its proper divisors (45823).

229085 is an equidigital number, since it uses as much as digits as its factorization.

229085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45822.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 229085 is about 478.6282482261. The cubic root of 229085 is about 61.1879004089.

The spelling of 229085 in words is "two hundred twenty-nine thousand, eighty-five".