2005338913 has 4 divisors (see below), whose sum is σ = 2059537300. Its totient is φ = 1951140528.

The previous prime is 2005338911. The next prime is 2005338917. The reversal of 2005338913 is 3198335002.

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 1924752384 + 80586529 = 43872^2 + 8977^2 .

It is a cyclic number.

It is not a de Polignac number, because 2005338913 - 2¹ = 2005338911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005338911) 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, 27099138 + ... + 27099211.

It is an arithmetic number, because the mean of its divisors is an integer number (514884325).

Almost surely, 2^2005338913 is an apocalyptic number.

It is an amenable number.

2005338913 is a deficient number, since it is larger than the sum of its proper divisors (54198387).

2005338913 is an equidigital number, since it uses as much as digits as its factorization.

2005338913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54198386.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 2005338913 is about 44781.0106295068. The cubic root of 2005338913 is about 1261.0411552732.

The spelling of 2005338913 in words is "two billion, five million, three hundred thirty-eight thousand, nine hundred thirteen".