22445143 has 8 divisors (see below), whose sum is σ = 25683840. Its totient is φ = 19214520.

The previous prime is 22445141. The next prime is 22445153. The reversal of 22445143 is 34154422.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22445143 - 2¹ = 22445141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22445141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6168 + ... + 9106.

It is an arithmetic number, because the mean of its divisors is an integer number (3210480).

Almost surely, 2^22445143 is an apocalyptic number.

22445143 is a deficient number, since it is larger than the sum of its proper divisors (3238697).

22445143 is a wasteful number, since it uses less digits than its factorization.

22445143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037.

The product of its digits is 3840, while the sum is 25.

The square root of 22445143 is about 4737.6305259064. The cubic root of 22445143 is about 282.0811890034.

Adding to 22445143 its reverse (34154422), we get a palindrome (56599565).

The spelling of 22445143 in words is "twenty-two million, four hundred forty-five thousand, one hundred forty-three".