1130985 has 24 divisors (see below), whose sum is σ = 2011464. Its totient is φ = 587520.

The previous prime is 1130981. The next prime is 1131023. The reversal of 1130985 is 5890311.

It can be written as a sum of positive squares in 4 ways, for example, as 114921 + 1016064 = 339^2 + 1008^2 .

It is not a de Polignac number, because 1130985 - 2² = 1130981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1539 + ... + 2151.

It is an arithmetic number, because the mean of its divisors is an integer number (83811).

2^1130985 is an apocalyptic number.

1130985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1130985 is a deficient number, since it is larger than the sum of its proper divisors (880479).

1130985 is a wasteful number, since it uses less digits than its factorization.

1130985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 662 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 1130985 is about 1063.4777853815. The cubic root of 1130985 is about 104.1882991517.

The spelling of 1130985 in words is "one million, one hundred thirty thousand, nine hundred eighty-five".