13005775 has 12 divisors (see below), whose sum is σ = 16684200. Its totient is φ = 10045280.

The previous prime is 13005767. The next prime is 13005859. The reversal of 13005775 is 57750031.

13005775 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13005775 - 2³ = 13005767 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8245 + ... + 9694.

It is an arithmetic number, because the mean of its divisors is an integer number (1390350).

Almost surely, 2^13005775 is an apocalyptic number.

13005775 is a deficient number, since it is larger than the sum of its proper divisors (3678425).

13005775 is a wasteful number, since it uses less digits than its factorization.

13005775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17978 (or 17973 counting only the distinct ones).

The product of its (nonzero) digits is 3675, while the sum is 28.

The square root of 13005775 is about 3606.3520349517. The cubic root of 13005775 is about 235.1682814582.

The spelling of 13005775 in words is "thirteen million, five thousand, seven hundred seventy-five".