612165013 has 2 divisors, whose sum is σ = 612165014. Its totient is φ = 612165012.

The previous prime is 612165011. The next prime is 612165041. The reversal of 612165013 is 310561216.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487217329 + 124947684 = 22073^2 + 11178^2 .

It is a cyclic number.

It is not a de Polignac number, because 612165013 - 2¹ = 612165011 is a prime.

Together with 612165011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612165011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306082506 + 306082507.

It is an arithmetic number, because the mean of its divisors is an integer number (306082507).

Almost surely, 2^612165013 is an apocalyptic number.

It is an amenable number.

612165013 is a deficient number, since it is larger than the sum of its proper divisors (1).

612165013 is an equidigital number, since it uses as much as digits as its factorization.

612165013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 612165013 is about 24741.9686565156. The cubic root of 612165013 is about 849.0947747119.

The spelling of 612165013 in words is "six hundred twelve million, one hundred sixty-five thousand, thirteen".