1085199136 has 96 divisors (see below), whose sum is σ = 2595317760. Its totient is φ = 436306176.

The previous prime is 1085199107. The next prime is 1085199139. The reversal of 1085199136 is 6319915801.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1085199092 and 1085199101.

It is not an unprimeable number, because it can be changed into a prime (1085199139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 454201 + ... + 456583.

It is an arithmetic number, because the mean of its divisors is an integer number (27034560).

Almost surely, 2^1085199136 is an apocalyptic number.

1085199136 is a gapful number since it is divisible by the number (16) 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 1085199136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1297658880).

1085199136 is an abundant number, since it is smaller than the sum of its proper divisors (1510118624).

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

1085199136 is a wasteful number, since it uses less digits than its factorization.

1085199136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2526 (or 2518 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 43.

The square root of 1085199136 is about 32942.3608140036. The cubic root of 1085199136 is about 1027.6293030740.

The spelling of 1085199136 in words is "one billion, eighty-five million, one hundred ninety-nine thousand, one hundred thirty-six".