128900983 has 2 divisors, whose sum is σ = 128900984. Its totient is φ = 128900982.

The previous prime is 128900957. The next prime is 128901023. The reversal of 128900983 is 389009821.

It is an a-pointer prime, because the next prime (128901023) can be obtained adding 128900983 to its sum of digits (40).

It is a weak prime.

It is an emirp because it is prime and its reverse (389009821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128900983 - 2⁵ = 128900951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128900923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64450491 + 64450492.

It is an arithmetic number, because the mean of its divisors is an integer number (64450492).

Almost surely, 2^128900983 is an apocalyptic number.

128900983 is a deficient number, since it is larger than the sum of its proper divisors (1).

128900983 is an equidigital number, since it uses as much as digits as its factorization.

128900983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 128900983 is about 11353.4568744502. The cubic root of 128900983 is about 505.1481224158.

The spelling of 128900983 in words is "one hundred twenty-eight million, nine hundred thousand, nine hundred eighty-three".