85180185 has 12 divisors (see below), whose sum is σ = 147645732. Its totient is φ = 45429408.

The previous prime is 85180127. The next prime is 85180213. The reversal of 85180185 is 58108158.

It can be written as a sum of positive squares in 2 ways, for example, as 44997264 + 40182921 = 6708^2 + 6339^2 .

It is not a de Polignac number, because 85180185 - 2⁷ = 85180057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 946402 + ... + 946491.

It is an arithmetic number, because the mean of its divisors is an integer number (12303811).

Almost surely, 2^85180185 is an apocalyptic number.

It is an amenable number.

85180185 is a deficient number, since it is larger than the sum of its proper divisors (62465547).

85180185 is a wasteful number, since it uses less digits than its factorization.

85180185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892904 (or 1892901 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 36.

The square root of 85180185 is about 9229.3111877323. The cubic root of 85180185 is about 439.9934313758.

The spelling of 85180185 in words is "eighty-five million, one hundred eighty thousand, one hundred eighty-five".