613210253 has 2 divisors, whose sum is σ = 613210254. Its totient is φ = 613210252.

The previous prime is 613210243. The next prime is 613210261. The reversal of 613210253 is 352012316.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 550277764 + 62932489 = 23458^2 + 7933^2 .

It is a cyclic number.

It is not a de Polignac number, because 613210253 - 2⁸ = 613209997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (613210243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306605126 + 306605127.

It is an arithmetic number, because the mean of its divisors is an integer number (306605127).

Almost surely, 2^613210253 is an apocalyptic number.

It is an amenable number.

613210253 is a deficient number, since it is larger than the sum of its proper divisors (1).

613210253 is an equidigital number, since it uses as much as digits as its factorization.

613210253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 613210253 is about 24763.0824616000. The cubic root of 613210253 is about 849.5777616831.

Adding to 613210253 its reverse (352012316), we get a palindrome (965222569).

The spelling of 613210253 in words is "six hundred thirteen million, two hundred ten thousand, two hundred fifty-three".