128052180 has 72 divisors (see below), whose sum is σ = 389391912. Its totient is φ = 34062336.

The previous prime is 128052179. The next prime is 128052181. The reversal of 128052180 is 81250821.

It is an interprime number because it is at equal distance from previous prime (128052179) and next prime (128052181).

It can be written as a sum of positive squares in 4 ways, for example, as 3640464 + 124411716 = 1908^2 + 11154^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128052181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110484 + ... + 111636.

It is an arithmetic number, because the mean of its divisors is an integer number (5408221).

Almost surely, 2^128052180 is an apocalyptic number.

128052180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128052180 is an abundant number, since it is smaller than the sum of its proper divisors (261339732).

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

128052180 is a wasteful number, since it uses less digits than its factorization.

128052180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785 (or 1780 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 128052180 is about 11316.0143160037. The cubic root of 128052180 is about 504.0368926131.

The spelling of 128052180 in words is "one hundred twenty-eight million, fifty-two thousand, one hundred eighty".