4222543 has 4 divisors (see below), whose sum is σ = 4547368. Its totient is φ = 3897720.

The previous prime is 4222529. The next prime is 4222553. The reversal of 4222543 is 3452224.

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 4222543 - 2¹⁷ = 4091471 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 (4222513) 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 3 ways as a sum of consecutive naturals, for example, 162393 + ... + 162418.

It is an arithmetic number, because the mean of its divisors is an integer number (1136842).

Almost surely, 2^4222543 is an apocalyptic number.

4222543 is a deficient number, since it is larger than the sum of its proper divisors (324825).

4222543 is a wasteful number, since it uses less digits than its factorization.

4222543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324824.

The product of its digits is 1920, while the sum is 22.

The square root of 4222543 is about 2054.8827217143. The cubic root of 4222543 is about 161.6310125552.

Adding to 4222543 its reverse (3452224), we get a palindrome (7674767).

The spelling of 4222543 in words is "four million, two hundred twenty-two thousand, five hundred forty-three".