128786108 has 54 divisors (see below), whose sum is σ = 259480872. Its totient is φ = 55882640.

The previous prime is 128786107. The next prime is 128786111. The reversal of 128786108 is 801687821.

It is a super-2 number, since 2×128786108² = 33171723227575328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128786107) 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 17 ways as a sum of consecutive naturals, for example, 255785 + ... + 256287.

Almost surely, 2^128786108 is an apocalyptic number.

It is an amenable number.

128786108 is an abundant number, since it is smaller than the sum of its proper divisors (130694764).

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

128786108 is a wasteful number, since it uses less digits than its factorization.

128786108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 539 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 41.

The square root of 128786108 is about 11348.3967149549. The cubic root of 128786108 is about 504.9980171801.

The spelling of 128786108 in words is "one hundred twenty-eight million, seven hundred eighty-six thousand, one hundred eight".