16222289 has 2 divisors, whose sum is σ = 16222290. Its totient is φ = 16222288.

The previous prime is 16222277. The next prime is 16222303. The reversal of 16222289 is 98222261.

16222289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15936064 + 286225 = 3992^2 + 535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16222289 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16222259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8111144 + 8111145.

It is an arithmetic number, because the mean of its divisors is an integer number (8111145).

Almost surely, 2^16222289 is an apocalyptic number.

It is an amenable number.

16222289 is a deficient number, since it is larger than the sum of its proper divisors (1).

16222289 is an equidigital number, since it uses as much as digits as its factorization.

16222289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 32.

The square root of 16222289 is about 4027.6902810420. The cubic root of 16222289 is about 253.1457912912.

The spelling of 16222289 in words is "sixteen million, two hundred twenty-two thousand, two hundred eighty-nine".