22135607 has 4 divisors (see below), whose sum is σ = 23838360. Its totient is φ = 20432856.

The previous prime is 22135579. The next prime is 22135639. The reversal of 22135607 is 70653122.

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 22135607 - 2¹⁰ = 22134583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22135307) 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 3 ways as a sum of consecutive naturals, for example, 851357 + ... + 851382.

It is an arithmetic number, because the mean of its divisors is an integer number (5959590).

Almost surely, 2^22135607 is an apocalyptic number.

22135607 is a deficient number, since it is larger than the sum of its proper divisors (1702753).

22135607 is a wasteful number, since it uses less digits than its factorization.

22135607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702752.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 22135607 is about 4704.8493068323. The cubic root of 22135607 is about 280.7784756284.

Adding to 22135607 its reverse (70653122), we get a palindrome (92788729).

The spelling of 22135607 in words is "twenty-two million, one hundred thirty-five thousand, six hundred seven".