128032712 has 32 divisors (see below), whose sum is σ = 257994720. Its totient is φ = 59347200.

The previous prime is 128032657. The next prime is 128032739. The reversal of 128032712 is 217230821.

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, 2087 + ... + 16137.

It is an arithmetic number, because the mean of its divisors is an integer number (8062335).

Almost surely, 2^128032712 is an apocalyptic number.

It is an amenable number.

128032712 is an abundant number, since it is smaller than the sum of its proper divisors (129962008).

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

128032712 is a wasteful number, since it uses less digits than its factorization.

128032712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14141 (or 14137 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 128032712 is about 11315.1540864453. The cubic root of 128032712 is about 504.0113481110.

The spelling of 128032712 in words is "one hundred twenty-eight million, thirty-two thousand, seven hundred twelve".