22563143 has 8 divisors (see below), whose sum is σ = 22808016. Its totient is φ = 22320000.

The previous prime is 22563137. The next prime is 22563157. The reversal of 22563143 is 34136522.

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 22563143 - 2⁸ = 22562887 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 (22563103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 60305 + ... + 60677.

It is an arithmetic number, because the mean of its divisors is an integer number (2851002).

Almost surely, 2^22563143 is an apocalyptic number.

22563143 is a deficient number, since it is larger than the sum of its proper divisors (244873).

22563143 is a wasteful number, since it uses less digits than its factorization.

22563143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865.

The product of its digits is 4320, while the sum is 26.

The square root of 22563143 is about 4750.0676837283. The cubic root of 22563143 is about 282.5746501757.

Adding to 22563143 its reverse (34136522), we get a palindrome (56699665).

The spelling of 22563143 in words is "twenty-two million, five hundred sixty-three thousand, one hundred forty-three".