128369713 has 2 divisors, whose sum is σ = 128369714. Its totient is φ = 128369712.

The previous prime is 128369699. The next prime is 128369723. The reversal of 128369713 is 317963821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114768369 + 13601344 = 10713^2 + 3688^2 .

It is a cyclic number.

It is not a de Polignac number, because 128369713 - 2⁹ = 128369201 is a prime.

It is not a weakly prime, because it can be changed into another prime (128369723) 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, 64184856 + 64184857.

It is an arithmetic number, because the mean of its divisors is an integer number (64184857).

Almost surely, 2^128369713 is an apocalyptic number.

It is an amenable number.

128369713 is a deficient number, since it is larger than the sum of its proper divisors (1).

128369713 is an equidigital number, since it uses as much as digits as its factorization.

128369713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 128369713 is about 11330.0358781427. The cubic root of 128369713 is about 504.4531714485.

The spelling of 128369713 in words is "one hundred twenty-eight million, three hundred sixty-nine thousand, seven hundred thirteen".