13105687 has 16 divisors (see below), whose sum is σ = 16096000. Its totient is φ = 10636920.

The previous prime is 13105679. The next prime is 13105693. The reversal of 13105687 is 78650131.

It is not a de Polignac number, because 13105687 - 2³ = 13105679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13105637) 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, 5512 + ... + 7522.

It is an arithmetic number, because the mean of its divisors is an integer number (1006000).

Almost surely, 2^13105687 is an apocalyptic number.

13105687 is a deficient number, since it is larger than the sum of its proper divisors (2990313).

13105687 is an equidigital number, since it uses as much as digits as its factorization.

13105687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2037 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 13105687 is about 3620.1777580666. The cubic root of 13105687 is about 235.7689433965.

The spelling of 13105687 in words is "thirteen million, one hundred five thousand, six hundred eighty-seven".