12319609 has 2 divisors, whose sum is σ = 12319610. Its totient is φ = 12319608.

The previous prime is 12319597. The next prime is 12319627. The reversal of 12319609 is 90691321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11868025 + 451584 = 3445^2 + 672^2 .

It is a cyclic number.

It is not a de Polignac number, because 12319609 - 2⁷ = 12319481 is a prime.

It is not a weakly prime, because it can be changed into another prime (12319649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6159804 + 6159805.

It is an arithmetic number, because the mean of its divisors is an integer number (6159805).

Almost surely, 2^12319609 is an apocalyptic number.

It is an amenable number.

12319609 is a deficient number, since it is larger than the sum of its proper divisors (1).

12319609 is an equidigital number, since it uses as much as digits as its factorization.

12319609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 12319609 is about 3509.9300562832. The cubic root of 12319609 is about 230.9576267049.

The spelling of 12319609 in words is "twelve million, three hundred nineteen thousand, six hundred nine".