13118209 has 8 divisors (see below), whose sum is σ = 14236992. Its totient is φ = 12015120.

The previous prime is 13118207. The next prime is 13118213. The reversal of 13118209 is 90281131.

13118209 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 13118209 - 2¹ = 13118207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13118207) 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, 2149 + ... + 5554.

It is an arithmetic number, because the mean of its divisors is an integer number (1779624).

Almost surely, 2^13118209 is an apocalyptic number.

It is an amenable number.

13118209 is a deficient number, since it is larger than the sum of its proper divisors (1118783).

13118209 is a wasteful number, since it uses less digits than its factorization.

13118209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7847.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 13118209 is about 3621.9068182382. The cubic root of 13118209 is about 235.8440090006.

The spelling of 13118209 in words is "thirteen million, one hundred eighteen thousand, two hundred nine".