13315345 has 4 divisors (see below), whose sum is σ = 15978420. Its totient is φ = 10652272.

The previous prime is 13315343. The next prime is 13315361. The reversal of 13315345 is 54351331.

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 4835601 + 8479744 = 2199^2 + 2912^2 .

It is a cyclic number.

It is not a de Polignac number, because 13315345 - 2¹ = 13315343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13315343) 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 3 ways as a sum of consecutive naturals, for example, 1331530 + ... + 1331539.

It is an arithmetic number, because the mean of its divisors is an integer number (3994605).

Almost surely, 2^13315345 is an apocalyptic number.

It is an amenable number.

13315345 is a deficient number, since it is larger than the sum of its proper divisors (2663075).

13315345 is an equidigital number, since it uses as much as digits as its factorization.

13315345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2663074.

The product of its digits is 2700, while the sum is 25.

The square root of 13315345 is about 3649.0197313799. The cubic root of 13315345 is about 237.0195346702.

Adding to 13315345 its reverse (54351331), we get a palindrome (67666676).

The spelling of 13315345 in words is "thirteen million, three hundred fifteen thousand, three hundred forty-five".