13688541 has 8 divisors (see below), whose sum is σ = 20279360. Its totient is φ = 9125676.

The previous prime is 13688539. The next prime is 13688561. The reversal of 13688541 is 14588631.

13688541 is a `hidden beast` number, since 1 + 36 + 88 + 541 = 666.

It is not a de Polignac number, because 13688541 - 2¹ = 13688539 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13688496 and 13688505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13688501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 253465 + ... + 253518.

It is an arithmetic number, because the mean of its divisors is an integer number (2534920).

Almost surely, 2^13688541 is an apocalyptic number.

It is an amenable number.

13688541 is a deficient number, since it is larger than the sum of its proper divisors (6590819).

13688541 is an equidigital number, since it uses as much as digits as its factorization.

13688541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506992 (or 506986 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 13688541 is about 3699.8028325845. The cubic root of 13688541 is about 239.2135192655.

The spelling of 13688541 in words is "thirteen million, six hundred eighty-eight thousand, five hundred forty-one".