613243243 has 2 divisors, whose sum is σ = 613243244. Its totient is φ = 613243242.

The previous prime is 613243229. The next prime is 613243247. The reversal of 613243243 is 342342316.

613243243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 613243243 - 2²¹ = 611146091 is a prime.

It is not a weakly prime, because it can be changed into another prime (613243247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306621621 + 306621622.

It is an arithmetic number, because the mean of its divisors is an integer number (306621622).

Almost surely, 2^613243243 is an apocalyptic number.

613243243 is a deficient number, since it is larger than the sum of its proper divisors (1).

613243243 is an equidigital number, since it uses as much as digits as its factorization.

613243243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 28.

The square root of 613243243 is about 24763.7485651910. The cubic root of 613243243 is about 849.5929968424.

Adding to 613243243 its reverse (342342316), we get a palindrome (955585559).

The spelling of 613243243 in words is "six hundred thirteen million, two hundred forty-three thousand, two hundred forty-three".