613006243 has 2 divisors, whose sum is σ = 613006244. Its totient is φ = 613006242.

The previous prime is 613006231. The next prime is 613006301. The reversal of 613006243 is 342600316.

613006243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613006243 is a prime.

It is not a weakly prime, because it can be changed into another prime (613007243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306503121 + 306503122.

It is an arithmetic number, because the mean of its divisors is an integer number (306503122).

Almost surely, 2^613006243 is an apocalyptic number.

613006243 is a deficient number, since it is larger than the sum of its proper divisors (1).

613006243 is an equidigital number, since it uses as much as digits as its factorization.

613006243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 613006243 is about 24758.9628821564. The cubic root of 613006243 is about 849.4835353918.

Adding to 613006243 its reverse (342600316), we get a palindrome (955606559).

The spelling of 613006243 in words is "six hundred thirteen million, six thousand, two hundred forty-three".