22213543 has 12 divisors (see below), whose sum is σ = 25855200. Its totient is φ = 19004480.

The previous prime is 22213537. The next prime is 22213547. The reversal of 22213543 is 34531222.

It is not a de Polignac number, because 22213543 - 2¹⁷ = 22082471 is a prime.

It is a super-2 number, since 2×22213543² = 986882985225698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22213547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3343 + ... + 7456.

It is an arithmetic number, because the mean of its divisors is an integer number (2154600).

Almost surely, 2^22213543 is an apocalyptic number.

22213543 is a deficient number, since it is larger than the sum of its proper divisors (3641657).

22213543 is a wasteful number, since it uses less digits than its factorization.

22213543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10838 (or 10827 counting only the distinct ones).

The product of its digits is 1440, while the sum is 22.

The square root of 22213543 is about 4713.1245474738. The cubic root of 22213543 is about 281.1076153034.

Adding to 22213543 its reverse (34531222), we get a palindrome (56744765).

The spelling of 22213543 in words is "twenty-two million, two hundred thirteen thousand, five hundred forty-three".