2133785 has 4 divisors (see below), whose sum is σ = 2560548. Its totient is φ = 1707024.

The previous prime is 2133773. The next prime is 2133793. The reversal of 2133785 is 5873312.

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 1336336 + 797449 = 1156^2 + 893^2 .

It is a cyclic number.

It is not a de Polignac number, because 2133785 - 2¹⁰ = 2132761 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 3² + 3⁹ + 7⁵ + 8 + 5³ .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213374 + ... + 213383.

It is an arithmetic number, because the mean of its divisors is an integer number (640137).

2^2133785 is an apocalyptic number.

It is an amenable number.

2133785 is a deficient number, since it is larger than the sum of its proper divisors (426763).

2133785 is an equidigital number, since it uses as much as digits as its factorization.

2133785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426762.

The product of its digits is 5040, while the sum is 29.

The square root of 2133785 is about 1460.7480960111. The cubic root of 2133785 is about 128.7410022933.

The spelling of 2133785 in words is "two million, one hundred thirty-three thousand, seven hundred eighty-five".