985185 has 12 divisors (see below), whose sum is σ = 1707732. Its totient is φ = 525408.

The previous prime is 985181. The next prime is 985213. The reversal of 985185 is 581589.

It can be written as a sum of positive squares in 2 ways, for example, as 553536 + 431649 = 744^2 + 657^2 .

It is not a de Polignac number, because 985185 - 2² = 985181 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (985181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10902 + ... + 10991.

It is an arithmetic number, because the mean of its divisors is an integer number (142311).

2⁹⁸⁵¹⁸⁵ is an apocalyptic number.

It is an amenable number.

985185 is a deficient number, since it is larger than the sum of its proper divisors (722547).

985185 is a wasteful number, since it uses less digits than its factorization.

985185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21904 (or 21901 counting only the distinct ones).

The product of its digits is 14400, while the sum is 36.

The square root of 985185 is about 992.5648593417. The cubic root of 985185 is about 99.5037076807.

The spelling of 985185 in words is "nine hundred eighty-five thousand, one hundred eighty-five".