206534 has 8 divisors (see below), whose sum is σ = 318288. Its totient is φ = 100440.

The previous prime is 206527. The next prime is 206543. The reversal of 206534 is 435602.

206534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon 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 206534.

It is an unprimeable number.

206534 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322 + ... + 1469.

It is an arithmetic number, because the mean of its divisors is an integer number (39786).

2²⁰⁶⁵³⁴ is an apocalyptic number.

206534 is a deficient number, since it is larger than the sum of its proper divisors (111754).

206534 is a wasteful number, since it uses less digits than its factorization.

206534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 206534 is about 454.4601192624. The cubic root of 206534 is about 59.1103937179.

The spelling of 206534 in words is "two hundred six thousand, five hundred thirty-four".