128132544 has 84 divisors (see below), whose sum is σ = 348363032. Its totient is φ = 41564160.

The previous prime is 128132533. The next prime is 128132551. The reversal of 128132544 is 445231821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 322554 + ... + 322950.

Almost surely, 2^128132544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128132544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174181516).

128132544 is an abundant number, since it is smaller than the sum of its proper divisors (220230488).

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

128132544 is an equidigital number, since it uses as much as digits as its factorization.

128132544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494 (or 443 counting only the distinct ones).

The product of its digits is 7680, while the sum is 30.

The square root of 128132544 is about 11319.5646559397. The cubic root of 128132544 is about 504.1423130493.

The spelling of 128132544 in words is "one hundred twenty-eight million, one hundred thirty-two thousand, five hundred forty-four".