1133985 has 16 divisors (see below), whose sum is σ = 1921536. Its totient is φ = 569088.

The previous prime is 1133971. The next prime is 1133989. The reversal of 1133985 is 5893311.

It is a happy number.

It is not a de Polignac number, because 1133985 - 2⁷ = 1133857 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133989) 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, 1969 + ... + 2478.

It is an arithmetic number, because the mean of its divisors is an integer number (120096).

2^1133985 is an apocalyptic number.

1133985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1133985 is a deficient number, since it is larger than the sum of its proper divisors (787551).

1133985 is a wasteful number, since it uses less digits than its factorization.

1133985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4472.

The product of its digits is 3240, while the sum is 30.

The square root of 1133985 is about 1064.8873179825. The cubic root of 1133985 is about 104.2803395527.

The spelling of 1133985 in words is "one million, one hundred thirty-three thousand, nine hundred eighty-five".