13209189 has 8 divisors (see below), whose sum is σ = 20128320. Its totient is φ = 7548096.

The previous prime is 13209179. The next prime is 13209191. The reversal of 13209189 is 98190231.

13209189 is digitally balanced in base 2 and base 8, because in such bases 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 13209189 - 2⁴ = 13209173 is a prime.

13209189 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13209109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314484 + ... + 314525.

It is an arithmetic number, because the mean of its divisors is an integer number (2516040).

Almost surely, 2^13209189 is an apocalyptic number.

It is an amenable number.

13209189 is a deficient number, since it is larger than the sum of its proper divisors (6919131).

13209189 is an equidigital number, since it uses as much as digits as its factorization.

13209189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629019.

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

The square root of 13209189 is about 3634.4447994157. Note that the first 3 decimals coincide. The cubic root of 13209189 is about 236.3879774063.

The spelling of 13209189 in words is "thirteen million, two hundred nine thousand, one hundred eighty-nine".