128687160 has 128 divisors (see below), whose sum is σ = 443750400. Its totient is φ = 29245440.

The previous prime is 128687159. The next prime is 128687213. The reversal of 128687160 is 61786821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 200440 + ... + 201080.

It is an arithmetic number, because the mean of its divisors is an integer number (3466800).

Almost surely, 2^128687160 is an apocalyptic number.

128687160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 128687160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221875200).

128687160 is an abundant number, since it is smaller than the sum of its proper divisors (315063240).

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

128687160 is a wasteful number, since it uses less digits than its factorization.

128687160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 39.

The square root of 128687160 is about 11344.0363187007. The cubic root of 128687160 is about 504.8686519165.

The spelling of 128687160 in words is "one hundred twenty-eight million, six hundred eighty-seven thousand, one hundred sixty".