209059 has 4 divisors (see below), whose sum is σ = 214200. Its totient is φ = 203920.

The previous prime is 209039. The next prime is 209063. The reversal of 209059 is 950902.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 209059 - 2⁷ = 208931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (209029) 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, 2509 + ... + 2590.

It is an arithmetic number, because the mean of its divisors is an integer number (53550).

2²⁰⁹⁰⁵⁹ is an apocalyptic number.

209059 is a deficient number, since it is larger than the sum of its proper divisors (5141).

209059 is an equidigital number, since it uses as much as digits as its factorization.

209059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 209059 is about 457.2297015724. The cubic root of 209059 is about 59.3503051506.

The spelling of 209059 in words is "two hundred nine thousand, fifty-nine".