128575167 has 12 divisors (see below), whose sum is σ = 199422936. Its totient is φ = 73471440.

The previous prime is 128575133. The next prime is 128575169. The reversal of 128575167 is 761575821.

It is not a de Polignac number, because 128575167 - 2⁶ = 128575103 is a prime.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 437184 + ... + 437477.

It is an arithmetic number, because the mean of its divisors is an integer number (16618578).

Almost surely, 2^128575167 is an apocalyptic number.

128575167 is a deficient number, since it is larger than the sum of its proper divisors (70847769).

128575167 is an equidigital number, since it uses as much as digits as its factorization.

128575167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874678 (or 874671 counting only the distinct ones).

The product of its digits is 117600, while the sum is 42.

The square root of 128575167 is about 11339.0990382834. The cubic root of 128575167 is about 504.7221515064.

The spelling of 128575167 in words is "one hundred twenty-eight million, five hundred seventy-five thousand, one hundred sixty-seven".