2001332133 has 6 divisors (see below), whose sum is σ = 2890813094. Its totient is φ = 1334221416.

The previous prime is 2001332119. The next prime is 2001332159. The reversal of 2001332133 is 3312331002.

2001332133 is a `hidden beast` number, since 200 + 1 + 332 + 133 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1566734724 + 434597409 = 39582^2 + 20847^2 .

It is not a de Polignac number, because 2001332133 - 2⁴ = 2001332117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001331133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111185110 + ... + 111185127.

Almost surely, 2^2001332133 is an apocalyptic number.

It is an amenable number.

2001332133 is a deficient number, since it is larger than the sum of its proper divisors (889480961).

2001332133 is a wasteful number, since it uses less digits than its factorization.

2001332133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222370243 (or 222370240 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 2001332133 is about 44736.2507704881. The cubic root of 2001332133 is about 1260.2007182128.

Adding to 2001332133 its reverse (3312331002), we get a palindrome (5313663135).

The spelling of 2001332133 in words is "two billion, one million, three hundred thirty-two thousand, one hundred thirty-three".