13085906 has 8 divisors (see below), whose sum is σ = 20262144. Its totient is φ = 6331860.

The previous prime is 13085899. The next prime is 13085921. The reversal of 13085906 is 60958031.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105470 + ... + 105593.

It is an arithmetic number, because the mean of its divisors is an integer number (2532768).

Almost surely, 2^13085906 is an apocalyptic number.

13085906 is a deficient number, since it is larger than the sum of its proper divisors (7176238).

13085906 is a wasteful number, since it uses less digits than its factorization.

13085906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211096.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 13085906 is about 3617.4446782225. Note that the first 3 decimals coincide. The cubic root of 13085906 is about 235.6502647944.

The spelling of 13085906 in words is "thirteen million, eighty-five thousand, nine hundred six".