213559 has 6 divisors (see below), whose sum is σ = 223136. Its totient is φ = 204180.

The previous prime is 213557. The next prime is 213589. The reversal of 213559 is 955312.

213559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213559 - 2¹ = 213557 is a prime.

It is a Duffinian number.

213559 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213553) 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, 2532 + ... + 2614.

2²¹³⁵⁵⁹ is an apocalyptic number.

213559 is a deficient number, since it is larger than the sum of its proper divisors (9577).

213559 is an frugal number, since it uses more digits than its factorization.

213559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 114 counting only the distinct ones).

The product of its digits is 1350, while the sum is 25.

The square root of 213559 is about 462.1244421149. The cubic root of 213559 is about 59.7731246893.

The spelling of 213559 in words is "two hundred thirteen thousand, five hundred fifty-nine".