13681375 has 8 divisors (see below), whose sum is σ = 17074512. Its totient is φ = 10945000.

The previous prime is 13681363. The next prime is 13681397. The reversal of 13681375 is 57318631.

It is not a de Polignac number, because 13681375 - 2¹⁹ = 13157087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13681375.

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, 54601 + ... + 54850.

It is an arithmetic number, because the mean of its divisors is an integer number (2134314).

Almost surely, 2^13681375 is an apocalyptic number.

13681375 is a deficient number, since it is larger than the sum of its proper divisors (3393137).

13681375 is an equidigital number, since it uses as much as digits as its factorization.

13681375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109466 (or 109456 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 13681375 is about 3698.8342758226. The cubic root of 13681375 is about 239.1717689359.

The spelling of 13681375 in words is "thirteen million, six hundred eighty-one thousand, three hundred seventy-five".