13982215 has 12 divisors (see below), whose sum is σ = 18169704. Its totient is φ = 10324704.

The previous prime is 13982197. The next prime is 13982231. The reversal of 13982215 is 51228931.

13982215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13982215 - 2¹¹ = 13980167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7429 + ... + 9118.

It is an arithmetic number, because the mean of its divisors is an integer number (1514142).

Almost surely, 2^13982215 is an apocalyptic number.

13982215 is a deficient number, since it is larger than the sum of its proper divisors (4187489).

13982215 is a wasteful number, since it uses less digits than its factorization.

13982215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16578 (or 16565 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 13982215 is about 3739.2800109112. The cubic root of 13982215 is about 240.9121251223.

The spelling of 13982215 in words is "thirteen million, nine hundred eighty-two thousand, two hundred fifteen".