13982109 has 12 divisors (see below), whose sum is σ = 19805184. Its totient is φ = 8772544.

The previous prime is 13982099. The next prime is 13982123. The reversal of 13982109 is 90128931.

It is not a de Polignac number, because 13982109 - 2⁴ = 13982093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13982109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13982159) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7197 + ... + 8930.

It is an arithmetic number, because the mean of its divisors is an integer number (1650432).

Almost surely, 2^13982109 is an apocalyptic number.

It is an amenable number.

13982109 is a deficient number, since it is larger than the sum of its proper divisors (5823075).

13982109 is a wasteful number, since it uses less digits than its factorization.

13982109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16164 (or 16147 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 13982109 is about 3739.2658370327. The cubic root of 13982109 is about 240.9115163310.

The spelling of 13982109 in words is "thirteen million, nine hundred eighty-two thousand, one hundred nine".