613243609 has 16 divisors (see below), whose sum is σ = 676719360. Its totient is φ = 555680400.

The previous prime is 613243573. The next prime is 613243613. The reversal of 613243609 is 906342316.

It is a happy number.

613243609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 613243609 - 2⁷ = 613243481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613243679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 573127 + ... + 574195.

It is an arithmetic number, because the mean of its divisors is an integer number (42294960).

Almost surely, 2^613243609 is an apocalyptic number.

It is an amenable number.

613243609 is a deficient number, since it is larger than the sum of its proper divisors (63475751).

613243609 is a wasteful number, since it uses less digits than its factorization.

613243609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1533 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 613243609 is about 24763.7559550243. The cubic root of 613243609 is about 849.5931658623.

The spelling of 613243609 in words is "six hundred thirteen million, two hundred forty-three thousand, six hundred nine".