2133400033 has 4 divisors (see below), whose sum is σ = 2138616580. Its totient is φ = 2128183488.

The previous prime is 2133400019. The next prime is 2133400039. The reversal of 2133400033 is 3300043312.

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 1142913249 + 990486784 = 33807^2 + 31472^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133400033 - 2⁵ = 2133400001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2133400039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2607660 + ... + 2608477.

It is an arithmetic number, because the mean of its divisors is an integer number (534654145).

Almost surely, 2^2133400033 is an apocalyptic number.

It is an amenable number.

2133400033 is a deficient number, since it is larger than the sum of its proper divisors (5216547).

2133400033 is an equidigital number, since it uses as much as digits as its factorization.

2133400033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5216546.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 2133400033 is about 46188.7435745983. The cubic root of 2133400033 is about 1287.3325955469.

Adding to 2133400033 its reverse (3300043312), we get a palindrome (5433443345).

The spelling of 2133400033 in words is "two billion, one hundred thirty-three million, four hundred thousand, thirty-three".