206530 has 16 divisors (see below), whose sum is σ = 391680. Its totient is φ = 78192.

The previous prime is 206527. The next prime is 206543. The reversal of 206530 is 35602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354 + ... + 733.

It is an arithmetic number, because the mean of its divisors is an integer number (24480).

2²⁰⁶⁵³⁰ is an apocalyptic number.

206530 is a deficient number, since it is larger than the sum of its proper divisors (185150).

206530 is a wasteful number, since it uses less digits than its factorization.

206530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 206530 is about 454.4557184149. The cubic root of 206530 is about 59.1100121131.

The spelling of 206530 in words is "two hundred six thousand, five hundred thirty".