205299 has 6 divisors (see below), whose sum is σ = 296556. Its totient is φ = 136860.

The previous prime is 205297. The next prime is 205307. The reversal of 205299 is 992502.

It is not a de Polignac number, because 205299 - 2¹ = 205297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205297) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11397 + ... + 11414.

It is an arithmetic number, because the mean of its divisors is an integer number (49426).

2²⁰⁵²⁹⁹ is an apocalyptic number.

205299 is a deficient number, since it is larger than the sum of its proper divisors (91257).

205299 is a wasteful number, since it uses less digits than its factorization.

205299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22817 (or 22814 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 205299 is about 453.0993268589. The cubic root of 205299 is about 58.9923383712.

The spelling of 205299 in words is "two hundred five thousand, two hundred ninety-nine".