22045543 has 6 divisors (see below), whose sum is σ = 23871984. Its totient is φ = 20349576.

The previous prime is 22045537. The next prime is 22045561. The reversal of 22045543 is 34554022.

It is not a de Polignac number, because 22045543 - 2⁵ = 22045511 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 (22045943) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65055 + ... + 65392.

It is an arithmetic number, because the mean of its divisors is an integer number (3978664).

Almost surely, 2^22045543 is an apocalyptic number.

22045543 is a deficient number, since it is larger than the sum of its proper divisors (1826441).

22045543 is a wasteful number, since it uses less digits than its factorization.

22045543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130473 (or 130460 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 22045543 is about 4695.2681499569. The cubic root of 22045543 is about 280.3971532465.

Adding to 22045543 its reverse (34554022), we get a palindrome (56599565).

The spelling of 22045543 in words is "twenty-two million, forty-five thousand, five hundred forty-three".