1085191836 has 48 divisors (see below), whose sum is σ = 2599382016. Its totient is φ = 352201024.

The previous prime is 1085191777. The next prime is 1085191853. The reversal of 1085191836 is 6381915801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106225 + ... + 115991.

It is an arithmetic number, because the mean of its divisors is an integer number (54153792).

Almost surely, 2^1085191836 is an apocalyptic number.

It is an amenable number.

1085191836 is an abundant number, since it is smaller than the sum of its proper divisors (1514190180).

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

1085191836 is a wasteful number, since it uses less digits than its factorization.

1085191836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10018 (or 10016 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 42.

The square root of 1085191836 is about 32942.2500142294. The cubic root of 1085191836 is about 1027.6269988239.

The spelling of 1085191836 in words is "one billion, eighty-five million, one hundred ninety-one thousand, eight hundred thirty-six".