22139565 has 16 divisors (see below), whose sum is σ = 40483968. Its totient is φ = 10120896.

The previous prime is 22139563. The next prime is 22139567. The reversal of 22139565 is 56593122.

It is an interprime number because it is at equal distance from previous prime (22139563) and next prime (22139567).

It is not a de Polignac number, because 22139565 - 2¹ = 22139563 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22139561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105322 + ... + 105531.

It is an arithmetic number, because the mean of its divisors is an integer number (2530248).

Almost surely, 2^22139565 is an apocalyptic number.

It is an amenable number.

22139565 is a deficient number, since it is larger than the sum of its proper divisors (18344403).

22139565 is a wasteful number, since it uses less digits than its factorization.

22139565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210868.

The product of its digits is 16200, while the sum is 33.

The square root of 22139565 is about 4705.2699178687. The cubic root of 22139565 is about 280.7952096771.

The spelling of 22139565 in words is "twenty-two million, one hundred thirty-nine thousand, five hundred sixty-five".