13040005 has 8 divisors (see below), whose sum is σ = 17070624. Its totient is φ = 9483600.

The previous prime is 13039993. The next prime is 13040029. The reversal of 13040005 is 50004031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13040005 - 2⁵ = 13039973 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 7 ways as a sum of consecutive naturals, for example, 118491 + ... + 118600.

It is an arithmetic number, because the mean of its divisors is an integer number (2133828).

Almost surely, 2^13040005 is an apocalyptic number.

It is an amenable number.

13040005 is a deficient number, since it is larger than the sum of its proper divisors (4030619).

13040005 is a wasteful number, since it uses less digits than its factorization.

13040005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237107.

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

The square root of 13040005 is about 3611.0947093645. The cubic root of 13040005 is about 235.3744144635.

Adding to 13040005 its reverse (50004031), we get a palindrome (63044036).

The spelling of 13040005 in words is "thirteen million, forty thousand, five".