13113005 has 4 divisors (see below), whose sum is σ = 15735612. Its totient is φ = 10490400.

The previous prime is 13112971. The next prime is 13113011. The reversal of 13113005 is 50031131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50031131 = 397 ⋅126023.

It can be written as a sum of positive squares in 2 ways, for example, as 6651241 + 6461764 = 2579^2 + 2542^2 .

It is not a de Polignac number, because 13113005 - 2⁶ = 13112941 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1311296 + ... + 1311305.

It is an arithmetic number, because the mean of its divisors is an integer number (3933903).

Almost surely, 2^13113005 is an apocalyptic number.

It is an amenable number.

13113005 is a deficient number, since it is larger than the sum of its proper divisors (2622607).

13113005 is an equidigital number, since it uses as much as digits as its factorization.

13113005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622606.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 13113005 is about 3621.1883408627. The cubic root of 13113005 is about 235.8128183975.

Adding to 13113005 its reverse (50031131), we get a palindrome (63144136).

The spelling of 13113005 in words is "thirteen million, one hundred thirteen thousand, five".