2815285 has 16 divisors (see below), whose sum is σ = 3903552. Its totient is φ = 1926400.

The previous prime is 2815271. The next prime is 2815289. The reversal of 2815285 is 5825182.

It is not a de Polignac number, because 2815285 - 2⁷ = 2815157 is a prime.

It is a Duffinian number.

2815285 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2815289) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 571 + ... + 2440.

It is an arithmetic number, because the mean of its divisors is an integer number (243972).

2^2815285 is an apocalyptic number.

It is an amenable number.

2815285 is a deficient number, since it is larger than the sum of its proper divisors (1088267).

2815285 is a wasteful number, since it uses less digits than its factorization.

2815285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3044.

The product of its digits is 6400, while the sum is 31.

The square root of 2815285 is about 1677.8811042502. The cubic root of 2815285 is about 141.2019807013.

The spelling of 2815285 in words is "two million, eight hundred fifteen thousand, two hundred eighty-five".