128885607 has 32 divisors (see below), whose sum is σ = 201939200. Its totient is φ = 81018144.

The previous prime is 128885579. The next prime is 128885611. The reversal of 128885607 is 706588821.

128885607 is a `hidden beast` number, since 1 + 2 + 8 + 88 + 560 + 7 = 666.

It is not a de Polignac number, because 128885607 - 2⁷ = 128885479 is a prime.

It is a super-2 number, since 2×128885607² = 33222999383516898, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128885707) 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 in 31 ways as a sum of consecutive naturals, for example, 141648 + ... + 142554.

It is an arithmetic number, because the mean of its divisors is an integer number (6310600).

Almost surely, 2^128885607 is an apocalyptic number.

128885607 is a deficient number, since it is larger than the sum of its proper divisors (73053593).

128885607 is a wasteful number, since it uses less digits than its factorization.

128885607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The square root of 128885607 is about 11352.7797036673. The cubic root of 128885607 is about 505.1280360254.

The spelling of 128885607 in words is "one hundred twenty-eight million, eight hundred eighty-five thousand, six hundred seven".