85158912 has 88 divisors (see below), whose sum is σ = 239089600. Its totient is φ = 26873856.

The previous prime is 85158907. The next prime is 85158923. The reversal of 85158912 is 21985158.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57639 + ... + 59097.

Almost surely, 2^85158912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85158912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119544800).

85158912 is an abundant number, since it is smaller than the sum of its proper divisors (153930688).

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

85158912 is a wasteful number, since it uses less digits than its factorization.

85158912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501 (or 1483 counting only the distinct ones).

The product of its digits is 28800, while the sum is 39.

The square root of 85158912 is about 9228.1586462306. The cubic root of 85158912 is about 439.9568001664.

The spelling of 85158912 in words is "eighty-five million, one hundred fifty-eight thousand, nine hundred twelve".