13126313 has 4 divisors (see below), whose sum is σ = 13144068. Its totient is φ = 13108560.

The previous prime is 13126303. The next prime is 13126319. The reversal of 13126313 is 31362131.

It is a happy number.

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 7327849 + 5798464 = 2707^2 + 2408^2 .

It is a cyclic number.

It is not a de Polignac number, because 13126313 - 2⁴ = 13126297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13126319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7718 + ... + 9263.

It is an arithmetic number, because the mean of its divisors is an integer number (3286017).

Almost surely, 2^13126313 is an apocalyptic number.

It is an amenable number.

13126313 is a deficient number, since it is larger than the sum of its proper divisors (17755).

13126313 is an equidigital number, since it uses as much as digits as its factorization.

13126313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17754.

The product of its digits is 324, while the sum is 20.

The square root of 13126313 is about 3623.0253932315. The cubic root of 13126313 is about 235.8925645722.

Adding to 13126313 its reverse (31362131), we get a palindrome (44488444).

The spelling of 13126313 in words is "thirteen million, one hundred twenty-six thousand, three hundred thirteen".