128100968 has 16 divisors (see below), whose sum is σ = 240951780. Its totient is φ = 63847168.

The previous prime is 128100953. The next prime is 128100979. The reversal of 128100968 is 869001821.

It can be written as a sum of positive squares in 2 ways, for example, as 128097124 + 3844 = 11318^2 + 62^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22721 + ... + 27792.

Almost surely, 2^128100968 is an apocalyptic number.

It is an amenable number.

128100968 is a deficient number, since it is larger than the sum of its proper divisors (112850812).

128100968 is a wasteful number, since it uses less digits than its factorization.

128100968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50836 (or 50832 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 128100968 is about 11318.1698167151. The cubic root of 128100968 is about 504.1008973272.

The spelling of 128100968 in words is "one hundred twenty-eight million, one hundred thousand, nine hundred sixty-eight".