22643103 has 16 divisors (see below), whose sum is σ = 34574336. Its totient is φ = 12912480.

The previous prime is 22643087. The next prime is 22643129. The reversal of 22643103 is 30134622.

It is a happy number.

It is not a de Polignac number, because 22643103 - 2⁴ = 22643087 is a prime.

It is a super-2 number, since 2×22643103² = 1025420226937218, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22643103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22643183) 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 15 ways as a sum of consecutive naturals, for example, 14658 + ... + 16128.

It is an arithmetic number, because the mean of its divisors is an integer number (2160896).

Almost surely, 2^22643103 is an apocalyptic number.

22643103 is a deficient number, since it is larger than the sum of its proper divisors (11931233).

22643103 is a wasteful number, since it uses less digits than its factorization.

22643103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 22643103 is about 4758.4769622223. The cubic root of 22643103 is about 282.9080557194.

Adding to 22643103 its reverse (30134622), we get a palindrome (52777725).

The spelling of 22643103 in words is "twenty-two million, six hundred forty-three thousand, one hundred three".