128168104 has 8 divisors (see below), whose sum is σ = 240315210. Its totient is φ = 64084048.

The previous prime is 128168101. The next prime is 128168141. The reversal of 128168104 is 401861821.

It can be written as a sum of positive squares in only one way, i.e., 127916100 + 252004 = 11310^2 + 502^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (128168101) by changing a digit.

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 as a sum of consecutive naturals, namely, 8010499 + ... + 8010514.

Almost surely, 2^128168104 is an apocalyptic number.

It is an amenable number.

128168104 is a deficient number, since it is larger than the sum of its proper divisors (112147106).

128168104 is a wasteful number, since it uses less digits than its factorization.

128168104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16021019 (or 16021015 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 128168104 is about 11321.1352787607. The cubic root of 128168104 is about 504.1889461214.

The spelling of 128168104 in words is "one hundred twenty-eight million, one hundred sixty-eight thousand, one hundred four".