2813105 has 4 divisors (see below), whose sum is σ = 3375732. Its totient is φ = 2250480.

The previous prime is 2813099. The next prime is 2813117. The reversal of 2813105 is 5013182.

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 2217121 + 595984 = 1489^2 + 772^2 .

It is a de Polignac number, because none of the positive numbers 2^k-2813105 is a prime.

It is a Duffinian number.

It is a Curzon 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, 281306 + ... + 281315.

It is an arithmetic number, because the mean of its divisors is an integer number (843933).

2^2813105 is an apocalyptic number.

It is an amenable number.

2813105 is a deficient number, since it is larger than the sum of its proper divisors (562627).

2813105 is an equidigital number, since it uses as much as digits as its factorization.

2813105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562626.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 2813105 is about 1677.2313495758. The cubic root of 2813105 is about 141.1655249718.

Adding to 2813105 its reverse (5013182), we get a palindrome (7826287).

The spelling of 2813105 in words is "two million, eight hundred thirteen thousand, one hundred five".