13871506 has 8 divisors (see below), whose sum is σ = 22698864. Its totient is φ = 6305220.

The previous prime is 13871503. The next prime is 13871513. The reversal of 13871506 is 60517831.

13871506 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 not an unprimeable number, because it can be changed into a prime (13871503) 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, 315240 + ... + 315283.

It is an arithmetic number, because the mean of its divisors is an integer number (2837358).

Almost surely, 2^13871506 is an apocalyptic number.

13871506 is a deficient number, since it is larger than the sum of its proper divisors (8827358).

13871506 is a wasteful number, since it uses less digits than its factorization.

13871506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630536.

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

The square root of 13871506 is about 3724.4470730566. The cubic root of 13871506 is about 240.2746046628.

The spelling of 13871506 in words is "thirteen million, eight hundred seventy-one thousand, five hundred six".