85142886 has 16 divisors (see below), whose sum is σ = 170833584. Its totient is φ = 28289664.

The previous prime is 85142879. The next prime is 85142891. The reversal of 85142886 is 68824158.

It is a super-2 number, since 2×85142886² = 14498622072817992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20791 + ... + 24546.

It is an arithmetic number, because the mean of its divisors is an integer number (10677099).

Almost surely, 2^85142886 is an apocalyptic number.

85142886 is an abundant number, since it is smaller than the sum of its proper divisors (85690698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85142886 is a wasteful number, since it uses less digits than its factorization.

85142886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45655.

The product of its digits is 122880, while the sum is 42.

The square root of 85142886 is about 9227.2902848019. The cubic root of 85142886 is about 439.9292000408.

The spelling of 85142886 in words is "eighty-five million, one hundred forty-two thousand, eight hundred eighty-six".