128468563 has 8 divisors (see below), whose sum is σ = 132937200. Its totient is φ = 124067328.

The previous prime is 128468513. The next prime is 128468567. The reversal of 128468563 is 365864821.

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 128468563 - 2¹⁷ = 128337491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128468567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12958 + ... + 20611.

It is an arithmetic number, because the mean of its divisors is an integer number (16617150).

Almost surely, 2^128468563 is an apocalyptic number.

128468563 is a deficient number, since it is larger than the sum of its proper divisors (4468637).

128468563 is an equidigital number, since it uses as much as digits as its factorization.

128468563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33701.

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

The square root of 128468563 is about 11334.3973373091. The cubic root of 128468563 is about 504.5826215109.

The spelling of 128468563 in words is "one hundred twenty-eight million, four hundred sixty-eight thousand, five hundred sixty-three".