85085143 has 12 divisors (see below), whose sum is σ = 100719304. Its totient is φ = 71398800.

The previous prime is 85085137. The next prime is 85085167. The reversal of 85085143 is 34158058.

It is not a de Polignac number, because 85085143 - 2¹³ = 85076951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85085099 and 85085108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85085113) 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, 25473 + ... + 28618.

Almost surely, 2^85085143 is an apocalyptic number.

85085143 is a deficient number, since it is larger than the sum of its proper divisors (15634161).

85085143 is a wasteful number, since it uses less digits than its factorization.

85085143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54126 (or 54115 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 85085143 is about 9224.1608290402. The cubic root of 85085143 is about 439.8297257813.

The spelling of 85085143 in words is "eighty-five million, eighty-five thousand, one hundred forty-three".