13008005 has 4 divisors (see below), whose sum is σ = 15609612. Its totient is φ = 10406400.

The previous prime is 13007987. The next prime is 13008019. The reversal of 13008005 is 50080031.

13008005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3996001 + 9012004 = 1999^2 + 3002^2 .

It is not a de Polignac number, because 13008005 - 2⁸ = 13007749 is a prime.

It is a Duffinian number.

It is a congruent 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, 1300796 + ... + 1300805.

It is an arithmetic number, because the mean of its divisors is an integer number (3902403).

Almost surely, 2^13008005 is an apocalyptic number.

It is an amenable number.

13008005 is a deficient number, since it is larger than the sum of its proper divisors (2601607).

13008005 is an equidigital number, since it uses as much as digits as its factorization.

13008005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601606.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 13008005 is about 3606.6611983939. The cubic root of 13008005 is about 235.1817215210.

Adding to 13008005 its reverse (50080031), we get a palindrome (63088036).

The spelling of 13008005 in words is "thirteen million, eight thousand, five".