128144076 has 24 divisors (see below), whose sum is σ = 299186160. Its totient is φ = 42688512.

The previous prime is 128144059. The next prime is 128144099. The reversal of 128144076 is 670441821.

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, 35340 + ... + 38796.

It is an arithmetic number, because the mean of its divisors is an integer number (12466090).

Almost surely, 2^128144076 is an apocalyptic number.

It is an amenable number.

128144076 is an abundant number, since it is smaller than the sum of its proper divisors (171042084).

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

128144076 is a wasteful number, since it uses less digits than its factorization.

128144076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6553 (or 6551 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 128144076 is about 11320.0740280265. The cubic root of 128144076 is about 504.1574369581.

Adding to 128144076 its reverse (670441821), we get a palindrome (798585897).

The spelling of 128144076 in words is "one hundred twenty-eight million, one hundred forty-four thousand, seventy-six".