128471130 has 64 divisors (see below), whose sum is σ = 353664000. Its totient is φ = 33151680.

The previous prime is 128471113. The next prime is 128471137. The reversal of 128471130 is 31174821.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 128471094 and 128471103.

It is not an unprimeable number, because it can be changed into a prime (128471137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 696 + ... + 16044.

It is an arithmetic number, because the mean of its divisors is an integer number (5526000).

Almost surely, 2^128471130 is an apocalyptic number.

128471130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128471130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176832000).

128471130 is an abundant number, since it is smaller than the sum of its proper divisors (225192870).

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

128471130 is a wasteful number, since it uses less digits than its factorization.

128471130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15396 (or 15390 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 128471130 is about 11334.5105761122. The cubic root of 128471130 is about 504.5859822681.

The spelling of 128471130 in words is "one hundred twenty-eight million, four hundred seventy-one thousand, one hundred thirty".