1085100 has 36 divisors (see below), whose sum is σ = 3140424. Its totient is φ = 289280.

The previous prime is 1085053. The next prime is 1085101. The reversal of 1085100 is 15801.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1085100.

It is not an unprimeable number, because it can be changed into a prime (1085101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1509 + ... + 2108.

It is an arithmetic number, because the mean of its divisors is an integer number (87234).

2^1085100 is an apocalyptic number.

1085100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1085100 is an abundant number, since it is smaller than the sum of its proper divisors (2055324).

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

1085100 is a wasteful number, since it uses less digits than its factorization.

1085100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3634 (or 3627 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1085100 is about 1041.6813332301. The cubic root of 1085100 is about 102.7598009843.

The spelling of 1085100 in words is "one million, eighty-five thousand, one hundred".