13688134 has 4 divisors (see below), whose sum is σ = 20532204. Its totient is φ = 6844066.

The previous prime is 13688131. The next prime is 13688141. The reversal of 13688134 is 43188631.

13688134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13688134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13688131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3422032 + ... + 3422035.

It is an arithmetic number, because the mean of its divisors is an integer number (5133051).

Almost surely, 2^13688134 is an apocalyptic number.

13688134 is a deficient number, since it is larger than the sum of its proper divisors (6844070).

13688134 is an equidigital number, since it uses as much as digits as its factorization.

13688134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6844069.

The product of its digits is 13824, while the sum is 34.

The square root of 13688134 is about 3699.7478292446. The cubic root of 13688134 is about 239.2111484049.

The spelling of 13688134 in words is "thirteen million, six hundred eighty-eight thousand, one hundred thirty-four".