2812005 has 48 divisors (see below), whose sum is σ = 5690880. Its totient is φ = 1257984.

The previous prime is 2812001. The next prime is 2812013. The reversal of 2812005 is 5002182.

2812005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2812005 - 2² = 2812001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812001) 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 47 ways as a sum of consecutive naturals, for example, 24829 + ... + 24941.

It is an arithmetic number, because the mean of its divisors is an integer number (118560).

2^2812005 is an apocalyptic number.

It is an amenable number.

2812005 is an abundant number, since it is smaller than the sum of its proper divisors (2878875).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2812005 is a wasteful number, since it uses less digits than its factorization.

2812005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2812005 is about 1676.9033961442. The cubic root of 2812005 is about 141.1471227292.

Adding to 2812005 its reverse (5002182), we get a palindrome (7814187).

The spelling of 2812005 in words is "two million, eight hundred twelve thousand, five".