1331133 has 4 divisors (see below), whose sum is σ = 1774848. Its totient is φ = 887420.

The previous prime is 1331123. The next prime is 1331153. The reversal of 1331133 is 3311331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1331133 - 2⁹ = 1330621 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221853 + ... + 221858.

It is an arithmetic number, because the mean of its divisors is an integer number (443712).

2^1331133 is an apocalyptic number.

It is an amenable number.

1331133 is a deficient number, since it is larger than the sum of its proper divisors (443715).

1331133 is an equidigital number, since it uses as much as digits as its factorization.

1331133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443714.

The product of its digits is 81, while the sum is 15.

The square root of 1331133 is about 1153.7473726947. The cubic root of 1331133 is about 110.0036637898.

Adding to 1331133 its reverse (3311331), we get a palindrome (4642464).

The spelling of 1331133 in words is "one million, three hundred thirty-one thousand, one hundred thirty-three".