85906161 has 24 divisors (see below), whose sum is σ = 136254144. Its totient is φ = 51723360.

The previous prime is 85906159. The next prime is 85906169. The reversal of 85906161 is 16160958.

85906161 is a `hidden beast` number, since 8 + 590 + 6 + 1 + 61 = 666.

It is not a de Polignac number, because 85906161 - 2¹ = 85906159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85906169) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12780 + ... + 18306.

It is an arithmetic number, because the mean of its divisors is an integer number (5677256).

Almost surely, 2^85906161 is an apocalyptic number.

It is an amenable number.

85906161 is a deficient number, since it is larger than the sum of its proper divisors (50347983).

85906161 is a wasteful number, since it uses less digits than its factorization.

85906161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5701 (or 5698 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 85906161 is about 9268.5576547810. The cubic root of 85906161 is about 441.2398929276.

The spelling of 85906161 in words is "eighty-five million, nine hundred six thousand, one hundred sixty-one".