12226609 has 2 divisors, whose sum is σ = 12226610. Its totient is φ = 12226608.

The previous prime is 12226601. The next prime is 12226631. The reversal of 12226609 is 90662221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9985600 + 2241009 = 3160^2 + 1497^2 .

It is a cyclic number.

It is not a de Polignac number, because 12226609 - 2³ = 12226601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12226601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113304 + 6113305.

It is an arithmetic number, because the mean of its divisors is an integer number (6113305).

Almost surely, 2^12226609 is an apocalyptic number.

It is an amenable number.

12226609 is a deficient number, since it is larger than the sum of its proper divisors (1).

12226609 is an equidigital number, since it uses as much as digits as its factorization.

12226609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 12226609 is about 3496.6568318896. The cubic root of 12226609 is about 230.3749963322.

The spelling of 12226609 in words is "twelve million, two hundred twenty-six thousand, six hundred nine".