2133812 has 6 divisors (see below), whose sum is σ = 3734178. Its totient is φ = 1066904.

The previous prime is 2133811. The next prime is 2133821. The reversal of 2133812 is 2183312.

It can be written as a sum of positive squares in only one way, i.e., 1731856 + 401956 = 1316^2 + 634^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 266723 + ... + 266730.

It is an arithmetic number, because the mean of its divisors is an integer number (622363).

2^2133812 is an apocalyptic number.

It is an amenable number.

2133812 is a deficient number, since it is larger than the sum of its proper divisors (1600366).

2133812 is a wasteful number, since it uses less digits than its factorization.

2133812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533457 (or 533455 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 2133812 is about 1460.7573378217. The cubic root of 2133812 is about 128.7415453021.

It can be divided in two parts, 21 and 33812, that added together give a palindrome (33833).

The spelling of 2133812 in words is "two million, one hundred thirty-three thousand, eight hundred twelve".