13685071 has 8 divisors (see below), whose sum is σ = 14202000. Its totient is φ = 13171200.

The previous prime is 13685057. The next prime is 13685081. The reversal of 13685071 is 17058631.

13685071 is digitally balanced in base 2, because in such base 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.

It is a 9-Lehmer number, since φ(13685071) divides (13685071-1)⁹.

It is a cyclic number.

It is not a de Polignac number, because 13685071 - 2¹³ = 13676879 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 (13685011) 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, 12496 + ... + 13546.

It is an arithmetic number, because the mean of its divisors is an integer number (1775250).

Almost surely, 2^13685071 is an apocalyptic number.

13685071 is a deficient number, since it is larger than the sum of its proper divisors (516929).

13685071 is a wasteful number, since it uses less digits than its factorization.

13685071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1529.

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

The square root of 13685071 is about 3699.3338589535. Note that the first 3 decimals coincide. The cubic root of 13685071 is about 239.1933042778.

The spelling of 13685071 in words is "thirteen million, six hundred eighty-five thousand, seventy-one".