13375865 has 16 divisors (see below), whose sum is σ = 16426368. Its totient is φ = 10454016.

The previous prime is 13375861. The next prime is 13375877. The reversal of 13375865 is 56857331.

13375865 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13375865 - 2² = 13375861 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13375861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69209 + ... + 69401.

It is an arithmetic number, because the mean of its divisors is an integer number (1026648).

Almost surely, 2^13375865 is an apocalyptic number.

It is an amenable number.

13375865 is a deficient number, since it is larger than the sum of its proper divisors (3050503).

13375865 is a wasteful number, since it uses less digits than its factorization.

13375865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448.

The product of its digits is 75600, while the sum is 38.

The square root of 13375865 is about 3657.3029680353. The cubic root of 13375865 is about 237.3780870151.

The spelling of 13375865 in words is "thirteen million, three hundred seventy-five thousand, eight hundred sixty-five".