13430209 has 8 divisors (see below), whose sum is σ = 14492520. Its totient is φ = 12372096.

The previous prime is 13430177. The next prime is 13430213. The reversal of 13430209 is 90203431.

It can be written as a sum of positive squares in 4 ways, for example, as 3010225 + 10419984 = 1735^2 + 3228^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 13430209 - 2⁵ = 13430177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13430209.

It is not an unprimeable number, because it can be changed into a prime (13430269) 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, 9879 + ... + 11155.

It is an arithmetic number, because the mean of its divisors is an integer number (1811565).

Almost surely, 2^13430209 is an apocalyptic number.

It is an amenable number.

13430209 is a deficient number, since it is larger than the sum of its proper divisors (1062311).

13430209 is a wasteful number, since it uses less digits than its factorization.

13430209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13430209 is about 3664.7249555731. The cubic root of 13430209 is about 237.6991290255.

The spelling of 13430209 in words is "thirteen million, four hundred thirty thousand, two hundred nine".