22530145 has 8 divisors (see below), whose sum is σ = 29494080. Its totient is φ = 16385520.

The previous prime is 22530139. The next prime is 22530161. The reversal of 22530145 is 54103522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22530145 - 2⁷ = 22530017 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204765 + ... + 204874.

It is an arithmetic number, because the mean of its divisors is an integer number (3686760).

Almost surely, 2^22530145 is an apocalyptic number.

It is an amenable number.

22530145 is a deficient number, since it is larger than the sum of its proper divisors (6963935).

22530145 is a wasteful number, since it uses less digits than its factorization.

22530145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409655.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 22530145 is about 4746.5929886604. The cubic root of 22530145 is about 282.4368303167.

Adding to 22530145 its reverse (54103522), we get a palindrome (76633667).

The spelling of 22530145 in words is "twenty-two million, five hundred thirty thousand, one hundred forty-five".