128061632 has 14 divisors (see below), whose sum is σ = 254122428. Its totient is φ = 64030784.

The previous prime is 128061617. The next prime is 128061649. The reversal of 128061632 is 236160821.

It is a junction number, because it is equal to n+sod(n) for n = 128061595 and 128061604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000418 + ... + 1000545.

It is an arithmetic number, because the mean of its divisors is an integer number (18151602).

Almost surely, 2^128061632 is an apocalyptic number.

It is an amenable number.

128061632 is a deficient number, since it is larger than the sum of its proper divisors (126060796).

128061632 is an equidigital number, since it uses as much as digits as its factorization.

128061632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000975 (or 2000965 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 128061632 is about 11316.4319465103. The cubic root of 128061632 is about 504.0492939105.

The spelling of 128061632 in words is "one hundred twenty-eight million, sixty-one thousand, six hundred thirty-two".