128963339 has 2 divisors, whose sum is σ = 128963340. Its totient is φ = 128963338.

The previous prime is 128963291. The next prime is 128963447. The reversal of 128963339 is 933369821.

It is a weak prime.

It is an emirp because it is prime and its reverse (933369821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128963339 - 2¹⁶ = 128897803 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128963339.

It is not a weakly prime, because it can be changed into another prime (128963239) 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, 64481669 + 64481670.

It is an arithmetic number, because the mean of its divisors is an integer number (64481670).

Almost surely, 2^128963339 is an apocalyptic number.

128963339 is a deficient number, since it is larger than the sum of its proper divisors (1).

128963339 is an equidigital number, since it uses as much as digits as its factorization.

128963339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 44.

The square root of 128963339 is about 11356.2026663846. The cubic root of 128963339 is about 505.2295646146.

The spelling of 128963339 in words is "one hundred twenty-eight million, nine hundred sixty-three thousand, three hundred thirty-nine".