985075613 has 2 divisors, whose sum is σ = 985075614. Its totient is φ = 985075612.

The previous prime is 985075583. The next prime is 985075631. The reversal of 985075613 is 316570589.

Together with next prime (985075631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 750924409 + 234151204 = 27403^2 + 15302^2 .

It is an emirp because it is prime and its reverse (316570589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985075613 - 2¹² = 985071517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985075633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492537806 + 492537807.

It is an arithmetic number, because the mean of its divisors is an integer number (492537807).

Almost surely, 2^985075613 is an apocalyptic number.

It is an amenable number.

985075613 is a deficient number, since it is larger than the sum of its proper divisors (1).

985075613 is an equidigital number, since it uses as much as digits as its factorization.

985075613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 985075613 is about 31385.9142450877. The cubic root of 985075613 is about 995.0002484785. Note that the first 3 decimals are identical.

The spelling of 985075613 in words is "nine hundred eighty-five million, seventy-five thousand, six hundred thirteen".