22243143 has 16 divisors (see below), whose sum is σ = 32144000. Its totient is φ = 13600224.

The previous prime is 22243141. The next prime is 22243153. The reversal of 22243143 is 34134222.

It is not a de Polignac number, because 22243143 - 2¹ = 22243141 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 (22243141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4608 + ... + 8106.

It is an arithmetic number, because the mean of its divisors is an integer number (2009000).

Almost surely, 2^22243143 is an apocalyptic number.

22243143 is a deficient number, since it is larger than the sum of its proper divisors (9900857).

22243143 is a wasteful number, since it uses less digits than its factorization.

22243143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3678.

The product of its digits is 1152, while the sum is 21.

The square root of 22243143 is about 4716.2636694740. The cubic root of 22243143 is about 281.2324204321.

Adding to 22243143 its reverse (34134222), we get a palindrome (56377365).

It can be divided in two parts, 222 and 43143, that added together give a triangular number (43365 = T₂₉₄).

The spelling of 22243143 in words is "twenty-two million, two hundred forty-three thousand, one hundred forty-three".