128145908 has 12 divisors (see below), whose sum is σ = 244642272. Its totient is φ = 58248120.

The previous prime is 128145893. The next prime is 128145929. The reversal of 128145908 is 809541821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1456160 + ... + 1456247.

It is an arithmetic number, because the mean of its divisors is an integer number (20386856).

Almost surely, 2^128145908 is an apocalyptic number.

It is an amenable number.

128145908 is a deficient number, since it is larger than the sum of its proper divisors (116496364).

128145908 is a wasteful number, since it uses less digits than its factorization.

128145908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912422 (or 2912420 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 128145908 is about 11320.1549459360. The cubic root of 128145908 is about 504.1598394935.

The spelling of 128145908 in words is "one hundred twenty-eight million, one hundred forty-five thousand, nine hundred eight".