13251313 has 4 divisors (see below), whose sum is σ = 14030820. Its totient is φ = 12471808.

The previous prime is 13251311. The next prime is 13251317. The reversal of 13251313 is 31315231.

13251313 is digitally balanced in base 2 and base 3, because in such bases 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 4112784 + 9138529 = 2028^2 + 3023^2 .

It is a cyclic number.

It is not a de Polignac number, because 13251313 - 2¹ = 13251311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13251311) 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, 389728 + ... + 389761.

It is an arithmetic number, because the mean of its divisors is an integer number (3507705).

Almost surely, 2^13251313 is an apocalyptic number.

It is an amenable number.

13251313 is a deficient number, since it is larger than the sum of its proper divisors (779507).

13251313 is an equidigital number, since it uses as much as digits as its factorization.

13251313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779506.

The product of its digits is 270, while the sum is 19.

The square root of 13251313 is about 3640.2352945929. The cubic root of 13251313 is about 236.6389905700.

Adding to 13251313 its reverse (31315231), we get a palindrome (44566544).

The spelling of 13251313 in words is "thirteen million, two hundred fifty-one thousand, three hundred thirteen".