13004005 has 16 divisors (see below), whose sum is σ = 18088704. Its totient is φ = 8789760.

The previous prime is 13003987. The next prime is 13004051. The reversal of 13004005 is 50040031.

It is not a de Polignac number, because 13004005 - 2⁷ = 13003877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132 + ... + 5101.

It is an arithmetic number, because the mean of its divisors is an integer number (1130544).

Almost surely, 2^13004005 is an apocalyptic number.

It is an amenable number.

13004005 is a deficient number, since it is larger than the sum of its proper divisors (5084699).

13004005 is an equidigital number, since it uses as much as digits as its factorization.

13004005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316.

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 13004005 is about 3606.1066262661. The cubic root of 13004005 is about 235.1576126914.

Adding to 13004005 its reverse (50040031), we get a palindrome (63044036).

The spelling of 13004005 in words is "thirteen million, four thousand, five".