13687122 has 16 divisors (see below), whose sum is σ = 27575712. Its totient is φ = 4528800.

The previous prime is 13687117. The next prime is 13687123. The reversal of 13687122 is 22178631.

It is a self number, because there is not a number n which added to its sum of digits gives 13687122.

It is not an unprimeable number, because it can be changed into a prime (13687123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7504 + ... + 9147.

It is an arithmetic number, because the mean of its divisors is an integer number (1723482).

Almost surely, 2^13687122 is an apocalyptic number.

13687122 is an abundant number, since it is smaller than the sum of its proper divisors (13888590).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13687122 is a wasteful number, since it uses less digits than its factorization.

13687122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16793.

The product of its digits is 4032, while the sum is 30.

The square root of 13687122 is about 3699.6110606387. The cubic root of 13687122 is about 239.2052530884.

The spelling of 13687122 in words is "thirteen million, six hundred eighty-seven thousand, one hundred twenty-two".