2105013 has 4 divisors (see below), whose sum is σ = 2806688. Its totient is φ = 1403340.

The previous prime is 2105009. The next prime is 2105027. The reversal of 2105013 is 3105012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2105013 - 2² = 2105009 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2105013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2105003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350833 + ... + 350838.

It is an arithmetic number, because the mean of its divisors is an integer number (701672).

2^2105013 is an apocalyptic number.

It is an amenable number.

2105013 is a deficient number, since it is larger than the sum of its proper divisors (701675).

2105013 is an equidigital number, since it uses as much as digits as its factorization.

2105013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701674.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 2105013 is about 1450.8662929436. The cubic root of 2105013 is about 128.1597330384.

Subtracting 2105013 from its reverse (3105012), we obtain a palindrome (999999).

The spelling of 2105013 in words is "two million, one hundred five thousand, thirteen".