2285005 has 4 divisors (see below), whose sum is σ = 2742012. Its totient is φ = 1828000.

The previous prime is 2284963. The next prime is 2285039. The reversal of 2285005 is 5005822.

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 1814409 + 470596 = 1347^2 + 686^2 .

It is not a de Polignac number, because 2285005 - 2⁹ = 2284493 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228496 + ... + 228505.

It is an arithmetic number, because the mean of its divisors is an integer number (685503).

2^2285005 is an apocalyptic number.

It is an amenable number.

2285005 is a deficient number, since it is larger than the sum of its proper divisors (457007).

2285005 is an equidigital number, since it uses as much as digits as its factorization.

2285005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457006.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2285005 is about 1511.6232996352. The cubic root of 2285005 is about 131.7131243062.

The spelling of 2285005 in words is "two million, two hundred eighty-five thousand, five".