128943383 has 2 divisors, whose sum is σ = 128943384. Its totient is φ = 128943382.

The previous prime is 128943349. The next prime is 128943389. The reversal of 128943383 is 383349821.

It is a strong prime.

It is an emirp because it is prime and its reverse (383349821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128943383 - 2¹⁴ = 128926999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128943383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128943389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64471691 + 64471692.

It is an arithmetic number, because the mean of its divisors is an integer number (64471692).

Almost surely, 2^128943383 is an apocalyptic number.

128943383 is a deficient number, since it is larger than the sum of its proper divisors (1).

128943383 is an equidigital number, since it uses as much as digits as its factorization.

128943383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 128943383 is about 11355.3239936164. The cubic root of 128943383 is about 505.2035032513.

The spelling of 128943383 in words is "one hundred twenty-eight million, nine hundred forty-three thousand, three hundred eighty-three".