22139 has 6 divisors (see below), whose sum is σ = 24156. Its totient is φ = 20280.

The previous prime is 22133. The next prime is 22147. The reversal of 22139 is 93122.

22139 = 2² + 3² + ... + 40².

It is not a de Polignac number, because 22139 - 2⁴ = 22123 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a nialpdrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 22139.

It is not an unprimeable number, because it can be changed into a prime (22133) 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, 104 + ... + 234.

It is an arithmetic number, because the mean of its divisors is an integer number (4026).

2²²¹³⁹ is an apocalyptic number.

22139 is a deficient number, since it is larger than the sum of its proper divisors (2017).

22139 is a wasteful number, since it uses less digits than its factorization.

22139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 144 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 22139 is about 148.7918008494. The cubic root of 22139 is about 28.0792821033.

Subtracting from 22139 its sum of digits (17), we obtain a palindrome (22122).

It can be divided in two parts, 2213 and 9, that added together give a palindrome (2222).

The spelling of 22139 in words is "twenty-two thousand, one hundred thirty-nine".