205534 has 16 divisors (see below), whose sum is σ = 360288. Its totient is φ = 86112.

The previous prime is 205529. The next prime is 205537. The reversal of 205534 is 435502.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 604 + ... + 880.

It is an arithmetic number, because the mean of its divisors is an integer number (22518).

2²⁰⁵⁵³⁴ is an apocalyptic number.

205534 is a deficient number, since it is larger than the sum of its proper divisors (154754).

205534 is a wasteful number, since it uses less digits than its factorization.

205534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 205534 is about 453.3585777285. The cubic root of 205534 is about 59.0148387459.

The spelling of 205534 in words is "two hundred five thousand, five hundred thirty-four".