128548663 has 8 divisors (see below), whose sum is σ = 130572000. Its totient is φ = 126538368.

The previous prime is 128548649. The next prime is 128548681. The reversal of 128548663 is 366845821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128548663 - 2⁵ = 128548631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128548603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17638 + ... + 23836.

It is an arithmetic number, because the mean of its divisors is an integer number (16321500).

Almost surely, 2^128548663 is an apocalyptic number.

128548663 is a deficient number, since it is larger than the sum of its proper divisors (2023337).

128548663 is an equidigital number, since it uses as much as digits as its factorization.

128548663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6521.

The product of its digits is 276480, while the sum is 43.

The square root of 128548663 is about 11337.9302784944. The cubic root of 128548663 is about 504.6874686163.

The spelling of 128548663 in words is "one hundred twenty-eight million, five hundred forty-eight thousand, six hundred sixty-three".