85032144 has 60 divisors (see below), whose sum is σ = 250504800. Its totient is φ = 26851392.

The previous prime is 85032139. The next prime is 85032169. The reversal of 85032144 is 44123058.

It is a congruent number.

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, 12804 + ... + 18275.

It is an arithmetic number, because the mean of its divisors is an integer number (4175080).

Almost surely, 2^85032144 is an apocalyptic number.

It is an amenable number.

85032144 is an abundant number, since it is smaller than the sum of its proper divisors (165472656).

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

85032144 is a wasteful number, since it uses less digits than its factorization.

85032144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31112 (or 31103 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 85032144 is about 9221.2875456739. The cubic root of 85032144 is about 439.7383844241.

The spelling of 85032144 in words is "eighty-five million, thirty-two thousand, one hundred forty-four".