13135686 has 8 divisors (see below), whose sum is σ = 26271384. Its totient is φ = 4378560.

The previous prime is 13135673. The next prime is 13135687. The reversal of 13135686 is 68653131.

13135686 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

13135686 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13135687) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094635 + ... + 1094646.

It is an arithmetic number, because the mean of its divisors is an integer number (3283923).

Almost surely, 2^13135686 is an apocalyptic number.

13135686 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13135686 is a wasteful number, since it uses less digits than its factorization.

13135686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189286.

The product of its digits is 12960, while the sum is 33.

The square root of 13135686 is about 3624.3186945963. The cubic root of 13135686 is about 235.9486985109.

The spelling of 13135686 in words is "thirteen million, one hundred thirty-five thousand, six hundred eighty-six".