13038605 has 4 divisors (see below), whose sum is σ = 15646332. Its totient is φ = 10430880.

The previous prime is 13038601. The next prime is 13038607. The reversal of 13038605 is 50683031.

13038605 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 2319529 + 10719076 = 1523^2 + 3274^2 .

It is not a de Polignac number, because 13038605 - 2² = 13038601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13038601) 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, 1303856 + ... + 1303865.

It is an arithmetic number, because the mean of its divisors is an integer number (3911583).

Almost surely, 2^13038605 is an apocalyptic number.

It is an amenable number.

13038605 is a deficient number, since it is larger than the sum of its proper divisors (2607727).

13038605 is an equidigital number, since it uses as much as digits as its factorization.

13038605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607726.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 13038605 is about 3610.9008571269. The cubic root of 13038605 is about 235.3659907456.

The spelling of 13038605 in words is "thirteen million, thirty-eight thousand, six hundred five".