13213205 has 8 divisors (see below), whose sum is σ = 15876000. Its totient is φ = 10557136.

The previous prime is 13213159. The next prime is 13213229. The reversal of 13213205 is 50231231.

13213205 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 13213205 - 2¹⁰ = 13212181 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5246 + ... + 7344.

It is an arithmetic number, because the mean of its divisors is an integer number (1984500).

Almost surely, 2^13213205 is an apocalyptic number.

13213205 is the 2099-th octagonal number.

It is an amenable number.

13213205 is a deficient number, since it is larger than the sum of its proper divisors (2662795).

13213205 is a wasteful number, since it uses less digits than its factorization.

13213205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13213205 is about 3634.9972489673. The cubic root of 13213205 is about 236.4119313857.

Adding to 13213205 its reverse (50231231), we get a palindrome (63444436).

The spelling of 13213205 in words is "thirteen million, two hundred thirteen thousand, two hundred five".