205229 has 4 divisors (see below), whose sum is σ = 214176. Its totient is φ = 196284.

The previous prime is 205223. The next prime is 205237. The reversal of 205229 is 922502.

205229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205229 - 2⁴ = 205213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205223) 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, 4439 + ... + 4484.

It is an arithmetic number, because the mean of its divisors is an integer number (53544).

2²⁰⁵²²⁹ is an apocalyptic number.

It is an amenable number.

205229 is a deficient number, since it is larger than the sum of its proper divisors (8947).

205229 is an equidigital number, since it uses as much as digits as its factorization.

205229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8946.

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

The square root of 205229 is about 453.0220745173. The cubic root of 205229 is about 58.9856328131.

Subtracting from 205229 its sum of digits (20), we obtain a square (205209 = 453²).

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

The spelling of 205229 in words is "two hundred five thousand, two hundred twenty-nine".