210065085 has 12 divisors (see below), whose sum is σ = 364112892. Its totient is φ = 112034688.

The previous prime is 210065081. The next prime is 210065087. The reversal of 210065085 is 580560012.

210065085 is a `hidden beast` number, since 2 + 1 + 0 + 0 + 650 + 8 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50851161 + 159213924 = 7131^2 + 12618^2 .

It is not a de Polignac number, because 210065085 - 2² = 210065081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210065081) 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, 2334012 + ... + 2334101.

It is an arithmetic number, because the mean of its divisors is an integer number (30342741).

Almost surely, 2^210065085 is an apocalyptic number.

It is an amenable number.

210065085 is a deficient number, since it is larger than the sum of its proper divisors (154047807).

210065085 is a wasteful number, since it uses less digits than its factorization.

210065085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668124 (or 4668121 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 210065085 is about 14493.6222180654. The cubic root of 210065085 is about 594.4535953082.

The spelling of 210065085 in words is "two hundred ten million, sixty-five thousand, eighty-five".