128575163 has 8 divisors (see below), whose sum is σ = 129606480. Its totient is φ = 127547680.

The previous prime is 128575133. The next prime is 128575169. The reversal of 128575163 is 361575821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128575163 - 2⁶ = 128575099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128575169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120653 + ... + 121713.

It is an arithmetic number, because the mean of its divisors is an integer number (16200810).

Almost surely, 2^128575163 is an apocalyptic number.

128575163 is a deficient number, since it is larger than the sum of its proper divisors (1031317).

128575163 is a wasteful number, since it uses less digits than its factorization.

128575163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1917.

The product of its digits is 50400, while the sum is 38.

The square root of 128575163 is about 11339.0988619026. The cubic root of 128575163 is about 504.7221462724.

The spelling of 128575163 in words is "one hundred twenty-eight million, five hundred seventy-five thousand, one hundred sixty-three".