22635139 has 4 divisors (see below), whose sum is σ = 22681000. Its totient is φ = 22589280.

The previous prime is 22635113. The next prime is 22635149. The reversal of 22635139 is 93153622.

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 22635139 - 2⁹ = 22634627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22635139.

It is not an unprimeable number, because it can be changed into a prime (22635149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22182 + ... + 23179.

It is an arithmetic number, because the mean of its divisors is an integer number (5670250).

Almost surely, 2^22635139 is an apocalyptic number.

22635139 is a deficient number, since it is larger than the sum of its proper divisors (45861).

22635139 is an equidigital number, since it uses as much as digits as its factorization.

22635139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45860.

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

The square root of 22635139 is about 4757.6400662513. The cubic root of 22635139 is about 282.8748838237.

The spelling of 22635139 in words is "twenty-two million, six hundred thirty-five thousand, one hundred thirty-nine".