229205 has 4 divisors (see below), whose sum is σ = 275052. Its totient is φ = 183360.

The previous prime is 229199. The next prime is 229213. The reversal of 229205 is 502922.

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 117649 + 111556 = 343^2 + 334^2 .

It is not a de Polignac number, because 229205 - 2⁴ = 229189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 229205.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22916 + ... + 22925.

It is an arithmetic number, because the mean of its divisors is an integer number (68763).

2²²⁹²⁰⁵ is an apocalyptic number.

It is an amenable number.

229205 is a deficient number, since it is larger than the sum of its proper divisors (45847).

229205 is an equidigital number, since it uses as much as digits as its factorization.

229205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45846.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 229205 is about 478.7535900649. The cubic root of 229205 is about 61.1985824212.

It can be divided in two parts, 229 and 205, that added together give a palindrome (434).

The spelling of 229205 in words is "two hundred twenty-nine thousand, two hundred five".