22054243 has 4 divisors (see below), whose sum is σ = 22222728. Its totient is φ = 21885760.

The previous prime is 22054229. The next prime is 22054267. The reversal of 22054243 is 34245022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22054243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22054223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84046 + ... + 84307.

It is an arithmetic number, because the mean of its divisors is an integer number (5555682).

Almost surely, 2^22054243 is an apocalyptic number.

22054243 is a deficient number, since it is larger than the sum of its proper divisors (168485).

22054243 is a wasteful number, since it uses less digits than its factorization.

22054243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168484.

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

The square root of 22054243 is about 4696.1945232284. The cubic root of 22054243 is about 280.4340334812.

Adding to 22054243 its reverse (34245022), we get a palindrome (56299265).

The spelling of 22054243 in words is "twenty-two million, fifty-four thousand, two hundred forty-three".