128490983 has 2 divisors, whose sum is σ = 128490984. Its totient is φ = 128490982.

The previous prime is 128490911. The next prime is 128491019. The reversal of 128490983 is 389094821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128490983 - 2¹² = 128486887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128490083) 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, 64245491 + 64245492.

It is an arithmetic number, because the mean of its divisors is an integer number (64245492).

Almost surely, 2^128490983 is an apocalyptic number.

128490983 is a deficient number, since it is larger than the sum of its proper divisors (1).

128490983 is an equidigital number, since it uses as much as digits as its factorization.

128490983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 128490983 is about 11335.3863189571. The cubic root of 128490983 is about 504.6119726198.

The spelling of 128490983 in words is "one hundred twenty-eight million, four hundred ninety thousand, nine hundred eighty-three".