1116985 has 12 divisors (see below), whose sum is σ = 1425708. Its totient is φ = 839936.

The previous prime is 1116977. The next prime is 1116989. The reversal of 1116985 is 5896111.

It can be written as a sum of positive squares in 6 ways, for example, as 1849 + 1115136 = 43^2 + 1056^2 .

It is not a de Polignac number, because 1116985 - 2³ = 1116977 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116989) 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, 1059 + ... + 1831.

It is an arithmetic number, because the mean of its divisors is an integer number (118809).

2^1116985 is an apocalyptic number.

It is an amenable number.

1116985 is a deficient number, since it is larger than the sum of its proper divisors (308723).

1116985 is an equidigital number, since it uses as much as digits as its factorization.

1116985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 795 counting only the distinct ones).

The product of its digits is 2160, while the sum is 31.

The square root of 1116985 is about 1056.8751108811. The cubic root of 1116985 is about 103.7566115688.

The spelling of 1116985 in words is "one million, one hundred sixteen thousand, nine hundred eighty-five".