22139563 has 2 divisors, whose sum is σ = 22139564. Its totient is φ = 22139562.

The previous prime is 22139561. The next prime is 22139567. The reversal of 22139563 is 36593122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22139563 - 2¹ = 22139561 is a prime.

Together with 22139561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another 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 as a sum of consecutive naturals, namely, 11069781 + 11069782.

It is an arithmetic number, because the mean of its divisors is an integer number (11069782).

Almost surely, 2^22139563 is an apocalyptic number.

22139563 is a deficient number, since it is larger than the sum of its proper divisors (1).

22139563 is an equidigital number, since it uses as much as digits as its factorization.

22139563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 31.

The square root of 22139563 is about 4705.2697053410. The cubic root of 22139563 is about 280.7952012218.

The spelling of 22139563 in words is "twenty-two million, one hundred thirty-nine thousand, five hundred sixty-three".