22080145 has 4 divisors (see below), whose sum is σ = 26496180. Its totient is φ = 17664112.

The previous prime is 22080119. The next prime is 22080167. The reversal of 22080145 is 54108022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3701776 + 18378369 = 1924^2 + 4287^2 .

It is a cyclic number.

It is not a de Polignac number, because 22080145 - 2¹¹ = 22078097 is a prime.

It is an unprimeable number.

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, 2208010 + ... + 2208019.

It is an arithmetic number, because the mean of its divisors is an integer number (6624045).

Almost surely, 2^22080145 is an apocalyptic number.

It is an amenable number.

22080145 is a deficient number, since it is larger than the sum of its proper divisors (4416035).

22080145 is an equidigital number, since it uses as much as digits as its factorization.

22080145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4416034.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 22080145 is about 4698.9514787876. The cubic root of 22080145 is about 280.5437774503.

Adding to 22080145 its reverse (54108022), we get a palindrome (76188167).

The spelling of 22080145 in words is "twenty-two million, eighty thousand, one hundred forty-five".