22269509 has 2 divisors, whose sum is σ = 22269510. Its totient is φ = 22269508.

The previous prime is 22269503. The next prime is 22269517. The reversal of 22269509 is 90596222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13118884 + 9150625 = 3622^2 + 3025^2 .

It is a cyclic number.

It is not a de Polignac number, because 22269509 - 2¹² = 22265413 is a prime.

It is a super-2 number, since 2×22269509² = 991862062202162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22269503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11134754 + 11134755.

It is an arithmetic number, because the mean of its divisors is an integer number (11134755).

Almost surely, 2^22269509 is an apocalyptic number.

It is an amenable number.

22269509 is a deficient number, since it is larger than the sum of its proper divisors (1).

22269509 is an equidigital number, since it uses as much as digits as its factorization.

22269509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 22269509 is about 4719.0580627918. The cubic root of 22269509 is about 281.3434965532.

The spelling of 22269509 in words is "twenty-two million, two hundred sixty-nine thousand, five hundred nine".