613006609 has 2 divisors, whose sum is σ = 613006610. Its totient is φ = 613006608.

The previous prime is 613006601. The next prime is 613006613. The reversal of 613006609 is 906600316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 527850625 + 85155984 = 22975^2 + 9228^2 .

It is a cyclic number.

It is not a de Polignac number, because 613006609 - 2³ = 613006601 is a prime.

It is not a weakly prime, because it can be changed into another prime (613006601) 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, 306503304 + 306503305.

It is an arithmetic number, because the mean of its divisors is an integer number (306503305).

Almost surely, 2^613006609 is an apocalyptic number.

It is an amenable number.

613006609 is a deficient number, since it is larger than the sum of its proper divisors (1).

613006609 is an equidigital number, since it uses as much as digits as its factorization.

613006609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 613006609 is about 24758.9702734181. The cubic root of 613006609 is about 849.4837044553.

The spelling of 613006609 in words is "six hundred thirteen million, six thousand, six hundred nine".