128963276 has 12 divisors (see below), whose sum is σ = 243046272. Its totient is φ = 59521488.

The previous prime is 128963273. The next prime is 128963291. The reversal of 128963276 is 672369821.

It is not an unprimeable number, because it can be changed into a prime (128963273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1239980 + ... + 1240083.

It is an arithmetic number, because the mean of its divisors is an integer number (20253856).

Almost surely, 2^128963276 is an apocalyptic number.

It is an amenable number.

128963276 is a deficient number, since it is larger than the sum of its proper divisors (114082996).

128963276 is a wasteful number, since it uses less digits than its factorization.

128963276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480080 (or 2480078 counting only the distinct ones).

The product of its digits is 217728, while the sum is 44.

The square root of 128963276 is about 11356.1998925697. The cubic root of 128963276 is about 505.2294823446.

The spelling of 128963276 in words is "one hundred twenty-eight million, nine hundred sixty-three thousand, two hundred seventy-six".