22888109 has 2 divisors, whose sum is σ = 22888110. Its totient is φ = 22888108.

The previous prime is 22888093. The next prime is 22888111. The reversal of 22888109 is 90188822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21362884 + 1525225 = 4622^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 22888109 - 2⁴ = 22888093 is a prime.

It is a Sophie Germain prime.

Together with 22888111, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22888309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11444054 + 11444055.

It is an arithmetic number, because the mean of its divisors is an integer number (11444055).

Almost surely, 2^22888109 is an apocalyptic number.

It is an amenable number.

22888109 is a deficient number, since it is larger than the sum of its proper divisors (1).

22888109 is an equidigital number, since it uses as much as digits as its factorization.

22888109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 38.

The square root of 22888109 is about 4784.1518579577. The cubic root of 22888109 is about 283.9247841876.

The spelling of 22888109 in words is "twenty-two million, eight hundred eighty-eight thousand, one hundred nine".