1100985 has 16 divisors (see below), whose sum is σ = 1823040. Its totient is φ = 566720.

The previous prime is 1100977. The next prime is 1101071. The reversal of 1100985 is 5890011.

It is not a de Polignac number, because 1100985 - 2³ = 1100977 is a prime.

It is a Curzon 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, 831 + ... + 1700.

It is an arithmetic number, because the mean of its divisors is an integer number (113940).

2^1100985 is an apocalyptic number.

1100985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1100985 is a deficient number, since it is larger than the sum of its proper divisors (722055).

1100985 is a wasteful number, since it uses less digits than its factorization.

1100985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 1100985 is about 1049.2783234204. The cubic root of 1100985 is about 103.2588143507.

Adding to 1100985 its reverse (5890011), we get a palindrome (6990996).

The spelling of 1100985 in words is "one million, one hundred thousand, nine hundred eighty-five".