285651136 has 56 divisors (see below), whose sum is σ = 606247200. Its totient is φ = 133066752.

The previous prime is 285651097. The next prime is 285651139. The reversal of 285651136 is 631156582.

285651136 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 285651095 and 285651104.

It is not an unprimeable number, because it can be changed into a prime (285651139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110790 + ... + 113338.

Almost surely, 2^285651136 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 285651136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303123600).

285651136 is an abundant number, since it is smaller than the sum of its proper divisors (320596064).

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

285651136 is a wasteful number, since it uses less digits than its factorization.

285651136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2681 (or 2671 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 285651136 is about 16901.2169976011. The cubic root of 285651136 is about 658.5852278104.

The spelling of 285651136 in words is "two hundred eighty-five million, six hundred fifty-one thousand, one hundred thirty-six".