1085931018 has 24 divisors (see below), whose sum is σ = 2356352388. Its totient is φ = 361438272.

The previous prime is 1085931001. The next prime is 1085931029. The reversal of 1085931018 is 8101395801.

It can be written as a sum of positive squares in 2 ways, for example, as 977000049 + 108930969 = 31257^2 + 10437^2 .

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, 32371 + ... + 56742.

Almost surely, 2^1085931018 is an apocalyptic number.

1085931018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1085931018 is an abundant number, since it is smaller than the sum of its proper divisors (1270421370).

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

1085931018 is a wasteful number, since it uses less digits than its factorization.

1085931018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89798 (or 89795 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 1085931018 is about 32953.4674655035. The cubic root of 1085931018 is about 1027.8602697079.

The spelling of 1085931018 in words is "one billion, eighty-five million, nine hundred thirty-one thousand, eighteen".