1133285 has 4 divisors (see below), whose sum is σ = 1359948. Its totient is φ = 906624.

The previous prime is 1133263. The next prime is 1133287. The reversal of 1133285 is 5823311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 889249 + 244036 = 943^2 + 494^2 .

It is a cyclic number.

It is not a de Polignac number, because 1133285 - 2¹⁶ = 1067749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1133285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113324 + ... + 113333.

It is an arithmetic number, because the mean of its divisors is an integer number (339987).

2^1133285 is an apocalyptic number.

It is an amenable number.

1133285 is a deficient number, since it is larger than the sum of its proper divisors (226663).

1133285 is an equidigital number, since it uses as much as digits as its factorization.

1133285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226662.

The product of its digits is 720, while the sum is 23.

The square root of 1133285 is about 1064.5585939722. The cubic root of 1133285 is about 104.2588779922.

Adding to 1133285 its reverse (5823311), we get a palindrome (6956596).

The spelling of 1133285 in words is "one million, one hundred thirty-three thousand, two hundred eighty-five".