128925180 has 72 divisors (see below), whose sum is σ = 400191792. Its totient is φ = 33578496.

The previous prime is 128925179. The next prime is 128925211. The reversal of 128925180 is 81529821.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 589 + ... + 16068.

Almost surely, 2^128925180 is an apocalyptic number.

128925180 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 128925180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200095896).

128925180 is an abundant number, since it is smaller than the sum of its proper divisors (271266612).

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

128925180 is a wasteful number, since it uses less digits than its factorization.

128925180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16715 (or 16710 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 128925180 is about 11354.5224470252. The cubic root of 128925180 is about 505.1797288579.

The spelling of 128925180 in words is "one hundred twenty-eight million, nine hundred twenty-five thousand, one hundred eighty".