2133493 has 4 divisors (see below), whose sum is σ = 2137120. Its totient is φ = 2129868.

The previous prime is 2133487. The next prime is 2133533. The reversal of 2133493 is 3943312.

It is a happy number.

2133493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2133493 - 2⁹ = 2132981 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 (2133403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705 + ... + 2182.

It is an arithmetic number, because the mean of its divisors is an integer number (534280).

2^2133493 is an apocalyptic number.

It is an amenable number.

2133493 is a deficient number, since it is larger than the sum of its proper divisors (3627).

2133493 is an equidigital number, since it uses as much as digits as its factorization.

2133493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3626.

The product of its digits is 1944, while the sum is 25.

The square root of 2133493 is about 1460.6481438047. The cubic root of 2133493 is about 128.7351294605.

The spelling of 2133493 in words is "two million, one hundred thirty-three thousand, four hundred ninety-three".