13308530 has 16 divisors (see below), whose sum is σ = 24603480. Its totient is φ = 5179392.

The previous prime is 13308511. The next prime is 13308541. The reversal of 13308530 is 3580331.

It can be written as a sum of positive squares in 4 ways, for example, as 13300609 + 7921 = 3647^2 + 89^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13308496 and 13308505.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 17615 + ... + 18354.

Almost surely, 2^13308530 is an apocalyptic number.

13308530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13308530 is a deficient number, since it is larger than the sum of its proper divisors (11294950).

13308530 is a wasteful number, since it uses less digits than its factorization.

13308530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36013.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13308530 is about 3648.0857994296. The cubic root of 13308530 is about 236.9790910121.

Adding to 13308530 its reverse (3580331), we get a palindrome (16888861).

The spelling of 13308530 in words is "thirteen million, three hundred eight thousand, five hundred thirty".