613009 has 2 divisors, whose sum is σ = 613010. Its totient is φ = 613008.

The previous prime is 613007. The next prime is 613013. The reversal of 613009 is 900316.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360000 + 253009 = 600^2 + 503^2 .

It is a cyclic number.

It is not a de Polignac number, because 613009 - 2¹ = 613007 is a prime.

Together with 613007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (613007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306504 + 306505.

It is an arithmetic number, because the mean of its divisors is an integer number (306505).

2⁶¹³⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

613009 is a deficient number, since it is larger than the sum of its proper divisors (1).

613009 is an equidigital number, since it uses as much as digits as its factorization.

613009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 613009 is about 782.9489127651. The cubic root of 613009 is about 84.9484808909.

The spelling of 613009 in words is "six hundred thirteen thousand, nine".