13130305 has 4 divisors (see below), whose sum is σ = 15756372. Its totient is φ = 10504240.

The previous prime is 13130297. The next prime is 13130317. The reversal of 13130305 is 50303131.

13130305 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10036224 + 3094081 = 3168^2 + 1759^2 .

It is not a de Polignac number, because 13130305 - 2³ = 13130297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1313026 + ... + 1313035.

It is an arithmetic number, because the mean of its divisors is an integer number (3939093).

Almost surely, 2^13130305 is an apocalyptic number.

It is an amenable number.

13130305 is a deficient number, since it is larger than the sum of its proper divisors (2626067).

13130305 is an equidigital number, since it uses as much as digits as its factorization.

13130305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2626066.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 13130305 is about 3623.5762721378. The cubic root of 13130305 is about 235.9164755179.

Adding to 13130305 its reverse (50303131), we get a palindrome (63433436).

The spelling of 13130305 in words is "thirteen million, one hundred thirty thousand, three hundred five".