13430205 has 20 divisors (see below), whose sum is σ = 24075612. Its totient is φ = 7162560.

The previous prime is 13430177. The next prime is 13430213. The reversal of 13430205 is 50203431.

It can be written as a sum of positive squares in 2 ways, for example, as 9474084 + 3956121 = 3078^2 + 1989^2 .

It is not a de Polignac number, because 13430205 - 2⁵ = 13430173 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16176 + ... + 16985.

Almost surely, 2^13430205 is an apocalyptic number.

13430205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13430205 is a deficient number, since it is larger than the sum of its proper divisors (10645407).

13430205 is an equidigital number, since it uses as much as digits as its factorization.

13430205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33178 (or 33169 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 13430205 is about 3664.7244098295. The cubic root of 13430205 is about 237.6991054271.

Adding to 13430205 its reverse (50203431), we get a palindrome (63633636).

The spelling of 13430205 in words is "thirteen million, four hundred thirty thousand, two hundred five".