613210243 has 2 divisors, whose sum is σ = 613210244. Its totient is φ = 613210242.

The previous prime is 613210231. The next prime is 613210253. The reversal of 613210243 is 342012316.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 613210243 - 2⁵ = 613210211 is a prime.

It is not a weakly prime, because it can be changed into another prime (613210253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306605121 + 306605122.

It is an arithmetic number, because the mean of its divisors is an integer number (306605122).

Almost surely, 2^613210243 is an apocalyptic number.

613210243 is a deficient number, since it is larger than the sum of its proper divisors (1).

613210243 is an equidigital number, since it uses as much as digits as its factorization.

613210243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 613210243 is about 24763.0822596865. The cubic root of 613210243 is about 849.5777570649.

Adding to 613210243 its reverse (342012316), we get a palindrome (955222559).

The spelling of 613210243 in words is "six hundred thirteen million, two hundred ten thousand, two hundred forty-three".