13931006 has 8 divisors (see below), whose sum is σ = 20925864. Its totient is φ = 6955720.

The previous prime is 13931003. The next prime is 13931017. The reversal of 13931006 is 60013931.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13931003) 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, 2960 + ... + 6051.

It is an arithmetic number, because the mean of its divisors is an integer number (2615733).

Almost surely, 2^13931006 is an apocalyptic number.

13931006 is a deficient number, since it is larger than the sum of its proper divisors (6994858).

13931006 is an equidigital number, since it uses as much as digits as its factorization.

13931006 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9786.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 13931006 is about 3732.4262886225. The cubic root of 13931006 is about 240.6176567389.

Adding to 13931006 its reverse (60013931), we get a palindrome (73944937).

The spelling of 13931006 in words is "thirteen million, nine hundred thirty-one thousand, six".