128732876 has 6 divisors (see below), whose sum is σ = 225282540. Its totient is φ = 64366436.

The previous prime is 128732873. The next prime is 128732881. The reversal of 128732876 is 678237821.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (128732873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16091606 + ... + 16091613.

It is an arithmetic number, because the mean of its divisors is an integer number (37547090).

Almost surely, 2^128732876 is an apocalyptic number.

It is an amenable number.

128732876 is a deficient number, since it is larger than the sum of its proper divisors (96549664).

128732876 is a wasteful number, since it uses less digits than its factorization.

128732876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32183223 (or 32183221 counting only the distinct ones).

The product of its digits is 225792, while the sum is 44.

The square root of 128732876 is about 11346.0511192221. The cubic root of 128732876 is about 504.9284295527.

The spelling of 128732876 in words is "one hundred twenty-eight million, seven hundred thirty-two thousand, eight hundred seventy-six".