1085125860 has 288 divisors, whose sum is σ = 4183775232. Its totient is φ = 221460480.

The previous prime is 1085125823. The next prime is 1085125871. The reversal of 1085125860 is 685215801.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 506712 + ... + 508848.

Almost surely, 2^1085125860 is an apocalyptic number.

1085125860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1085125860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2091887616).

1085125860 is an abundant number, since it is smaller than the sum of its proper divisors (3098649372).

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

1085125860 is a wasteful number, since it uses less digits than its factorization.

1085125860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203 (or 2198 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 36.

The square root of 1085125860 is about 32941.2486102151. The cubic root of 1085125860 is about 1027.6061729844.

The spelling of 1085125860 in words is "one billion, eighty-five million, one hundred twenty-five thousand, eight hundred sixty".