128148256 has 24 divisors (see below), whose sum is σ = 258161904. Its totient is φ = 62583360.

The previous prime is 128148221. The next prime is 128148271. The reversal of 128148256 is 652841821.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45190 + ... + 47941.

It is an arithmetic number, because the mean of its divisors is an integer number (10756746).

Almost surely, 2^128148256 is an apocalyptic number.

128148256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128148256 is an abundant number, since it is smaller than the sum of its proper divisors (130013648).

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

128148256 is an equidigital number, since it uses as much as digits as its factorization.

128148256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93184 (or 93176 counting only the distinct ones).

The product of its digits is 30720, while the sum is 37.

The square root of 128148256 is about 11320.2586542888. The cubic root of 128148256 is about 504.1629186920.

The spelling of 128148256 in words is "one hundred twenty-eight million, one hundred forty-eight thousand, two hundred fifty-six".