128971301 has 2 divisors, whose sum is σ = 128971302. Its totient is φ = 128971300.

The previous prime is 128971291. The next prime is 128971309. The reversal of 128971301 is 103179821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110040100 + 18931201 = 10490^2 + 4351^2 .

It is a cyclic number.

It is not a de Polignac number, because 128971301 - 2⁶ = 128971237 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128971309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64485650 + 64485651.

It is an arithmetic number, because the mean of its divisors is an integer number (64485651).

Almost surely, 2^128971301 is an apocalyptic number.

It is an amenable number.

128971301 is a deficient number, since it is larger than the sum of its proper divisors (1).

128971301 is an equidigital number, since it uses as much as digits as its factorization.

128971301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 128971301 is about 11356.5532182965. The cubic root of 128971301 is about 505.2399617684.

The spelling of 128971301 in words is "one hundred twenty-eight million, nine hundred seventy-one thousand, three hundred one".