13630209 has 8 divisors (see below), whose sum is σ = 19242720. Its totient is φ = 8552256.

The previous prime is 13630207. The next prime is 13630213. The reversal of 13630209 is 90203631.

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

It is not a de Polignac number, because 13630209 - 2¹ = 13630207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13630207) 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, 133579 + ... + 133680.

It is an arithmetic number, because the mean of its divisors is an integer number (2405340).

Almost surely, 2^13630209 is an apocalyptic number.

It is an amenable number.

13630209 is a deficient number, since it is larger than the sum of its proper divisors (5612511).

13630209 is a wasteful number, since it uses less digits than its factorization.

13630209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267279.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 13630209 is about 3691.9112936256. The cubic root of 13630209 is about 238.8732426585.

The spelling of 13630209 in words is "thirteen million, six hundred thirty thousand, two hundred nine".