128558082 has 32 divisors (see below), whose sum is σ = 259915392. Its totient is φ = 42389504.

The previous prime is 128558071. The next prime is 128558093. The reversal of 128558082 is 280855821.

It is an interprime number because it is at equal distance from previous prime (128558071) and next prime (128558093).

It is a self number, because there is not a number n which added to its sum of digits gives 128558082.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 405388 + ... + 405704.

It is an arithmetic number, because the mean of its divisors is an integer number (8122356).

Almost surely, 2^128558082 is an apocalyptic number.

128558082 is an abundant number, since it is smaller than the sum of its proper divisors (131357310).

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

128558082 is a wasteful number, since it uses less digits than its factorization.

128558082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842.

The product of its (nonzero) digits is 51200, while the sum is 39.

The square root of 128558082 is about 11338.3456465218. The cubic root of 128558082 is about 504.6997947789.

The spelling of 128558082 in words is "one hundred twenty-eight million, five hundred fifty-eight thousand, eighty-two".