213583 has 4 divisors (see below), whose sum is σ = 215280. Its totient is φ = 211888.

The previous prime is 213557. The next prime is 213589. The reversal of 213583 is 385312.

213583 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213583 - 2¹³ = 205391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213589) 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, 643 + ... + 916.

It is an arithmetic number, because the mean of its divisors is an integer number (53820).

2²¹³⁵⁸³ is an apocalyptic number.

213583 is a deficient number, since it is larger than the sum of its proper divisors (1697).

213583 is a wasteful number, since it uses less digits than its factorization.

213583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696.

The product of its digits is 720, while the sum is 22.

The square root of 213583 is about 462.1504084170. The cubic root of 213583 is about 59.7753637290.

Adding to 213583 its reverse (385312), we get a palindrome (598895).

The spelling of 213583 in words is "two hundred thirteen thousand, five hundred eighty-three".