128080532 has 12 divisors (see below), whose sum is σ = 230199060. Its totient is φ = 62309376.

The previous prime is 128080493. The next prime is 128080543. The reversal of 128080532 is 235080821.

It can be written as a sum of positive squares in 2 ways, for example, as 121132036 + 6948496 = 11006^2 + 2636^2 .

It is a super-3 number, since 3×128080532³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 128080495 and 128080504.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 432557 + ... + 432852.

It is an arithmetic number, because the mean of its divisors is an integer number (19183255).

Almost surely, 2^128080532 is an apocalyptic number.

It is an amenable number.

128080532 is a deficient number, since it is larger than the sum of its proper divisors (102118528).

128080532 is a wasteful number, since it uses less digits than its factorization.

128080532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865450 (or 865448 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 128080532 is about 11317.2669845683. The cubic root of 128080532 is about 504.0740894273.

The spelling of 128080532 in words is "one hundred twenty-eight million, eighty thousand, five hundred thirty-two".