2001133 has 4 divisors (see below), whose sum is σ = 2006208. Its totient is φ = 1996060.

The previous prime is 2001127. The next prime is 2001163. The reversal of 2001133 is 3311002.

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 2001133 - 2⁵ = 2001101 is a prime.

It is a Duffinian number.

2001133 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001163) 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, 1891 + ... + 2752.

It is an arithmetic number, because the mean of its divisors is an integer number (501552).

2^2001133 is an apocalyptic number.

It is an amenable number.

2001133 is a deficient number, since it is larger than the sum of its proper divisors (5075).

2001133 is an equidigital number, since it uses as much as digits as its factorization.

2001133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5074.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 2001133 is about 1414.6140816491. The cubic root of 2001133 is about 126.0158920074.

Adding to 2001133 its reverse (3311002), we get a palindrome (5312135).

The spelling of 2001133 in words is "two million, one thousand, one hundred thirty-three".