1001133 has 16 divisors (see below), whose sum is σ = 1695360. Its totient is φ = 571968.

The previous prime is 1001123. The next prime is 1001153. The reversal of 1001133 is 3311001.

It is not a de Polignac number, because 1001133 - 2⁶ = 1001069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001123) 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, 2460 + ... + 2837.

It is an arithmetic number, because the mean of its divisors is an integer number (105960).

2^1001133 is an apocalyptic number.

It is an amenable number.

1001133 is a deficient number, since it is larger than the sum of its proper divisors (694227).

1001133 is an equidigital number, since it uses as much as digits as its factorization.

1001133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5313 (or 5307 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 1001133 is about 1000.5663396297. The cubic root of 1001133 is about 100.0377524124.

Adding to 1001133 its reverse (3311001), we get a palindrome (4312134).

The spelling of 1001133 in words is "one million, one thousand, one hundred thirty-three".