128750560 has 48 divisors (see below), whose sum is σ = 304861536. Its totient is φ = 51383808.

The previous prime is 128750539. The next prime is 128750563. The reversal of 128750560 is 65057821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128750563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120589 + ... + 121651.

It is an arithmetic number, because the mean of its divisors is an integer number (6351282).

Almost surely, 2^128750560 is an apocalyptic number.

128750560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128750560 is an abundant number, since it is smaller than the sum of its proper divisors (176110976).

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

128750560 is a wasteful number, since it uses less digits than its factorization.

128750560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1827 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 128750560 is about 11346.8303944317. The cubic root of 128750560 is about 504.9515491209.

The spelling of 128750560 in words is "one hundred twenty-eight million, seven hundred fifty thousand, five hundred sixty".