128541180 has 24 divisors (see below), whose sum is σ = 359915472. Its totient is φ = 34277632.

The previous prime is 128541173. The next prime is 128541197. The reversal of 128541180 is 81145821.

It is a happy number.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071117 + ... + 1071236.

It is an arithmetic number, because the mean of its divisors is an integer number (14996478).

Almost surely, 2^128541180 is an apocalyptic number.

128541180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128541180 is an abundant number, since it is smaller than the sum of its proper divisors (231374292).

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

128541180 is a wasteful number, since it uses less digits than its factorization.

128541180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142365 (or 2142363 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 30.

The square root of 128541180 is about 11337.6002751905. The cubic root of 128541180 is about 504.6776755685.

The spelling of 128541180 in words is "one hundred twenty-eight million, five hundred forty-one thousand, one hundred eighty".