22459009 has 2 divisors, whose sum is σ = 22459010. Its totient is φ = 22459008.

The previous prime is 22458991. The next prime is 22459013. The reversal of 22459009 is 90095422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15776784 + 6682225 = 3972^2 + 2585^2 .

It is a cyclic number.

It is not a de Polignac number, because 22459009 - 2¹¹ = 22456961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22459039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11229504 + 11229505.

It is an arithmetic number, because the mean of its divisors is an integer number (11229505).

Almost surely, 2^22459009 is an apocalyptic number.

It is an amenable number.

22459009 is a deficient number, since it is larger than the sum of its proper divisors (1).

22459009 is an equidigital number, since it uses as much as digits as its factorization.

22459009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 22459009 is about 4739.0936897259. The cubic root of 22459009 is about 282.1392644128.

The spelling of 22459009 in words is "twenty-two million, four hundred fifty-nine thousand, nine".