22445123 has 4 divisors (see below), whose sum is σ = 22541688. Its totient is φ = 22348560.

The previous prime is 22445113. The next prime is 22445141. The reversal of 22445123 is 32154422.

It is a happy number.

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 22445123 - 2⁸ = 22444867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22445113) 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, 47933 + ... + 48398.

It is an arithmetic number, because the mean of its divisors is an integer number (5635422).

Almost surely, 2^22445123 is an apocalyptic number.

22445123 is a deficient number, since it is larger than the sum of its proper divisors (96565).

22445123 is an equidigital number, since it uses as much as digits as its factorization.

22445123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96564.

The product of its digits is 1920, while the sum is 23.

The square root of 22445123 is about 4737.6284151461. The cubic root of 22445123 is about 282.0811052195.

Adding to 22445123 its reverse (32154422), we get a palindrome (54599545).

The spelling of 22445123 in words is "twenty-two million, four hundred forty-five thousand, one hundred twenty-three".