13951313 has 2 divisors, whose sum is σ = 13951314. Its totient is φ = 13951312.

The previous prime is 13951303. The next prime is 13951381. The reversal of 13951313 is 31315931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13082689 + 868624 = 3617^2 + 932^2 .

It is a cyclic number.

It is not a de Polignac number, because 13951313 - 2⁴ = 13951297 is a prime.

It is not a weakly prime, because it can be changed into another prime (13951303) by changing a digit.

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 as a sum of consecutive naturals, namely, 6975656 + 6975657.

It is an arithmetic number, because the mean of its divisors is an integer number (6975657).

Almost surely, 2^13951313 is an apocalyptic number.

It is an amenable number.

13951313 is a deficient number, since it is larger than the sum of its proper divisors (1).

13951313 is an equidigital number, since it uses as much as digits as its factorization.

13951313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1215, while the sum is 26.

The square root of 13951313 is about 3735.1456464240. The cubic root of 13951313 is about 240.7345147865.

The spelling of 13951313 in words is "thirteen million, nine hundred fifty-one thousand, three hundred thirteen".