22282289 has 2 divisors, whose sum is σ = 22282290. Its totient is φ = 22282288.

The previous prime is 22282283. The next prime is 22282303. The reversal of 22282289 is 98228222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21298225 + 984064 = 4615^2 + 992^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22282289 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (22282283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11141144 + 11141145.

It is an arithmetic number, because the mean of its divisors is an integer number (11141145).

Almost surely, 2^22282289 is an apocalyptic number.

It is an amenable number.

22282289 is a deficient number, since it is larger than the sum of its proper divisors (1).

22282289 is an equidigital number, since it uses as much as digits as its factorization.

22282289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 35.

The square root of 22282289 is about 4720.4119523618. The cubic root of 22282289 is about 281.3973052877.

The spelling of 22282289 in words is "twenty-two million, two hundred eighty-two thousand, two hundred eighty-nine".