13959313 has 2 divisors, whose sum is σ = 13959314. Its totient is φ = 13959312.

The previous prime is 13959307. The next prime is 13959317. The reversal of 13959313 is 31395931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8427409 + 5531904 = 2903^2 + 2352^2 .

It is a cyclic number.

It is not a de Polignac number, because 13959313 - 2⁹ = 13958801 is a prime.

It is not a weakly prime, because it can be changed into another prime (13959317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6979656 + 6979657.

It is an arithmetic number, because the mean of its divisors is an integer number (6979657).

Almost surely, 2^13959313 is an apocalyptic number.

It is an amenable number.

13959313 is a deficient number, since it is larger than the sum of its proper divisors (1).

13959313 is an equidigital number, since it uses as much as digits as its factorization.

13959313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10935, while the sum is 34.

The square root of 13959313 is about 3736.2164016556. The cubic root of 13959313 is about 240.7805202084.

The spelling of 13959313 in words is "thirteen million, nine hundred fifty-nine thousand, three hundred thirteen".