128012528 has 20 divisors (see below), whose sum is σ = 283456560. Its totient is φ = 54862464.

The previous prime is 128012513. The next prime is 128012569. The reversal of 128012528 is 825210821.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 128012528.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571373 + ... + 571596.

It is an arithmetic number, because the mean of its divisors is an integer number (14172828).

Almost surely, 2^128012528 is an apocalyptic number.

It is an amenable number.

128012528 is an abundant number, since it is smaller than the sum of its proper divisors (155444032).

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

128012528 is a wasteful number, since it uses less digits than its factorization.

128012528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142984 (or 1142978 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 128012528 is about 11314.2621500476. The cubic root of 128012528 is about 503.9848613913.

The spelling of 128012528 in words is "one hundred twenty-eight million, twelve thousand, five hundred twenty-eight".