13345205 has 8 divisors (see below), whose sum is σ = 16044504. Its totient is φ = 10656000.

The previous prime is 13345193. The next prime is 13345207. The reversal of 13345205 is 50254331.

It can be written as a sum of positive squares in 4 ways, for example, as 2540836 + 10804369 = 1594^2 + 3287^2 .

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

It is not a de Polignac number, because 13345205 - 2²² = 9150901 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 (13345207) 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, 785 + ... + 5225.

It is an arithmetic number, because the mean of its divisors is an integer number (2005563).

Almost surely, 2^13345205 is an apocalyptic number.

It is an amenable number.

13345205 is a deficient number, since it is larger than the sum of its proper divisors (2699299).

13345205 is an equidigital number, since it uses as much as digits as its factorization.

13345205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5047.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 13345205 is about 3653.1089499220. The cubic root of 13345205 is about 237.1965765085.

Adding to 13345205 its reverse (50254331), we get a palindrome (63599536).

The spelling of 13345205 in words is "thirteen million, three hundred forty-five thousand, two hundred five".