13866189 has 8 divisors (see below), whose sum is σ = 18671712. Its totient is φ = 9152400.

The previous prime is 13866173. The next prime is 13866191. The reversal of 13866189 is 98166831.

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

It is not a de Polignac number, because 13866189 - 2⁴ = 13866173 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13866189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13866109) 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, 22579 + ... + 23184.

It is an arithmetic number, because the mean of its divisors is an integer number (2333964).

Almost surely, 2^13866189 is an apocalyptic number.

It is an amenable number.

13866189 is a deficient number, since it is larger than the sum of its proper divisors (4805523).

13866189 is a wasteful number, since it uses less digits than its factorization.

13866189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45867.

The product of its digits is 62208, while the sum is 42.

The square root of 13866189 is about 3723.7332074143. The cubic root of 13866189 is about 240.2439013555.

The spelling of 13866189 in words is "thirteen million, eight hundred sixty-six thousand, one hundred eighty-nine".