22240135 has 4 divisors (see below), whose sum is σ = 26688168. Its totient is φ = 17792104.

The previous prime is 22240133. The next prime is 22240147. The reversal of 22240135 is 53104222.

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 22240135 - 2¹ = 22240133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22240133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2224009 + ... + 2224018.

It is an arithmetic number, because the mean of its divisors is an integer number (6672042).

Almost surely, 2^22240135 is an apocalyptic number.

22240135 is a deficient number, since it is larger than the sum of its proper divisors (4448033).

22240135 is an equidigital number, since it uses as much as digits as its factorization.

22240135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4448032.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 22240135 is about 4715.9447621871. The cubic root of 22240135 is about 281.2197425886.

Adding to 22240135 its reverse (53104222), we get a palindrome (75344357).

The spelling of 22240135 in words is "twenty-two million, two hundred forty thousand, one hundred thirty-five".