128000178 has 48 divisors (see below), whose sum is σ = 288018432. Its totient is φ = 41040000.

The previous prime is 128000177. The next prime is 128000203. The reversal of 128000178 is 871000821.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (128000177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105978 + ... + 107178.

It is an arithmetic number, because the mean of its divisors is an integer number (6000384).

Almost surely, 2^128000178 is an apocalyptic number.

128000178 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 128000178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144009216).

128000178 is an abundant number, since it is smaller than the sum of its proper divisors (160018254).

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

128000178 is a wasteful number, since it uses less digits than its factorization.

128000178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431 (or 1428 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 27.

The square root of 128000178 is about 11313.7163655450. The cubic root of 128000178 is about 503.9686535682.

Adding to 128000178 its reverse (871000821), we get a palindrome (999000999).

The spelling of 128000178 in words is "one hundred twenty-eight million, one hundred seventy-eight", and thus it is an aban number.