13245205 has 12 divisors (see below), whose sum is σ = 16189452. Its totient is φ = 10402880.

The previous prime is 13245203. The next prime is 13245233. The reversal of 13245205 is 50254231.

It can be written as a sum of positive squares in 2 ways, for example, as 1535121 + 11710084 = 1239^2 + 3422^2 .

It is not a de Polignac number, because 13245205 - 2¹ = 13245203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13245203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17025 + ... + 17785.

It is an arithmetic number, because the mean of its divisors is an integer number (1349121).

Almost surely, 2^13245205 is an apocalyptic number.

It is an amenable number.

13245205 is a deficient number, since it is larger than the sum of its proper divisors (2944247).

13245205 is an frugal number, since it uses more digits than its factorization.

13245205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 13245205 is about 3639.3962411367. The cubic root of 13245205 is about 236.6026265486.

Adding to 13245205 its reverse (50254231), we get a palindrome (63499436).

The spelling of 13245205 in words is "thirteen million, two hundred forty-five thousand, two hundred five".