128210912 has 12 divisors (see below), whose sum is σ = 252415296. Its totient is φ = 64105440.

The previous prime is 128210909. The next prime is 128210921. The reversal of 128210912 is 219012821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2003264 + ... + 2003327.

It is an arithmetic number, because the mean of its divisors is an integer number (21034608).

Almost surely, 2^128210912 is an apocalyptic number.

It is an amenable number.

128210912 is a deficient number, since it is larger than the sum of its proper divisors (124204384).

128210912 is an equidigital number, since it uses as much as digits as its factorization.

128210912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006601 (or 4006593 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 128210912 is about 11323.0257440315. The cubic root of 128210912 is about 504.2450727167.

The spelling of 128210912 in words is "one hundred twenty-eight million, two hundred ten thousand, nine hundred twelve".