13143313 has 2 divisors, whose sum is σ = 13143314. Its totient is φ = 13143312.

The previous prime is 13143301. The next prime is 13143343. The reversal of 13143313 is 31334131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11950849 + 1192464 = 3457^2 + 1092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13143313 is a prime.

It is not a weakly prime, because it can be changed into another prime (13143343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6571656 + 6571657.

It is an arithmetic number, because the mean of its divisors is an integer number (6571657).

Almost surely, 2^13143313 is an apocalyptic number.

It is an amenable number.

13143313 is a deficient number, since it is larger than the sum of its proper divisors (1).

13143313 is an equidigital number, since it uses as much as digits as its factorization.

13143313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 19.

The square root of 13143313 is about 3625.3707396624. The cubic root of 13143313 is about 235.9943561324.

Adding to 13143313 its reverse (31334131), we get a palindrome (44477444).

It can be divided in two parts, 13143 and 313, that added together give a square (13456 = 116²).

The spelling of 13143313 in words is "thirteen million, one hundred forty-three thousand, three hundred thirteen".