128656482 has 16 divisors (see below), whose sum is σ = 261154272. Its totient is φ = 42245280.

The previous prime is 128656481. The next prime is 128656487. The reversal of 128656482 is 284656821.

It is not an unprimeable number, because it can be changed into a prime (128656481) 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, 159619 + ... + 160422.

It is an arithmetic number, because the mean of its divisors is an integer number (16322142).

Almost surely, 2^128656482 is an apocalyptic number.

128656482 is an abundant number, since it is smaller than the sum of its proper divisors (132497790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128656482 is a wasteful number, since it uses less digits than its factorization.

128656482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320113.

The product of its digits is 184320, while the sum is 42.

The square root of 128656482 is about 11342.6840738866. The cubic root of 128656482 is about 504.8285298317.

The spelling of 128656482 in words is "one hundred twenty-eight million, six hundred fifty-six thousand, four hundred eighty-two".