14187909 has 8 divisors (see below), whose sum is σ = 19428640. Its totient is φ = 9202896.

The previous prime is 14187881. The next prime is 14187913. The reversal of 14187909 is 90978141.

It is a happy number.

14187909 is digitally balanced in base 3, 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 a de Polignac number, because 14187909 - 2¹¹ = 14185861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14187919) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 63799 + ... + 64020.

It is an arithmetic number, because the mean of its divisors is an integer number (2428580).

Almost surely, 2^14187909 is an apocalyptic number.

It is an amenable number.

14187909 is a deficient number, since it is larger than the sum of its proper divisors (5240731).

14187909 is a wasteful number, since it uses less digits than its factorization.

14187909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127859.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 14187909 is about 3766.6840855054. The cubic root of 14187909 is about 242.0877411050.

The spelling of 14187909 in words is "fourteen million, one hundred eighty-seven thousand, nine hundred nine".