612130613 has 2 divisors, whose sum is σ = 612130614. Its totient is φ = 612130612.

The previous prime is 612130583. The next prime is 612130633. The reversal of 612130613 is 316031216.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 599613169 + 12517444 = 24487^2 + 3538^2 .

It is a cyclic number.

It is not a de Polignac number, because 612130613 - 2²⁰ = 611082037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612130633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306065306 + 306065307.

It is an arithmetic number, because the mean of its divisors is an integer number (306065307).

Almost surely, 2^612130613 is an apocalyptic number.

It is an amenable number.

612130613 is a deficient number, since it is larger than the sum of its proper divisors (1).

612130613 is an equidigital number, since it uses as much as digits as its factorization.

612130613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 612130613 is about 24741.2734716708. The cubic root of 612130613 is about 849.0788697371.

Adding to 612130613 its reverse (316031216), we get a palindrome (928161829).

The spelling of 612130613 in words is "six hundred twelve million, one hundred thirty thousand, six hundred thirteen".