128336713 has 2 divisors, whose sum is σ = 128336714. Its totient is φ = 128336712.

The previous prime is 128336693. The next prime is 128336749. The reversal of 128336713 is 317633821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124813584 + 3523129 = 11172^2 + 1877^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128336713 is a prime.

It is not a weakly prime, because it can be changed into another prime (128336753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64168356 + 64168357.

It is an arithmetic number, because the mean of its divisors is an integer number (64168357).

Almost surely, 2^128336713 is an apocalyptic number.

It is an amenable number.

128336713 is a deficient number, since it is larger than the sum of its proper divisors (1).

128336713 is an equidigital number, since it uses as much as digits as its factorization.

128336713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 128336713 is about 11328.5794784695. The cubic root of 128336713 is about 504.4099411544.

The spelling of 128336713 in words is "one hundred twenty-eight million, three hundred thirty-six thousand, seven hundred thirteen".