22548973 has 2 divisors, whose sum is σ = 22548974. Its totient is φ = 22548972.

The previous prime is 22548971. The next prime is 22548983. The reversal of 22548973 is 37984522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18636489 + 3912484 = 4317^2 + 1978^2 .

It is a cyclic number.

It is not a de Polignac number, because 22548973 - 2¹ = 22548971 is a prime.

Together with 22548971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22548971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11274486 + 11274487.

It is an arithmetic number, because the mean of its divisors is an integer number (11274487).

Almost surely, 2^22548973 is an apocalyptic number.

It is an amenable number.

22548973 is a deficient number, since it is larger than the sum of its proper divisors (1).

22548973 is an equidigital number, since it uses as much as digits as its factorization.

22548973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 22548973 is about 4748.5758917806. The cubic root of 22548973 is about 282.5154840496.

The spelling of 22548973 in words is "twenty-two million, five hundred forty-eight thousand, nine hundred seventy-three".