875128 has 8 divisors (see below), whose sum is σ = 1640880. Its totient is φ = 437560.

The previous prime is 875117. The next prime is 875129. The reversal of 875128 is 821578.

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

It is an Ulam number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 875128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (875129) by changing a digit.

875128 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54688 + ... + 54703.

It is an arithmetic number, because the mean of its divisors is an integer number (205110).

2⁸⁷⁵¹²⁸ is an apocalyptic number.

It is an amenable number.

875128 is a deficient number, since it is larger than the sum of its proper divisors (765752).

875128 is a wasteful number, since it uses less digits than its factorization.

875128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109397 (or 109393 counting only the distinct ones).

The product of its digits is 4480, while the sum is 31.

The square root of 875128 is about 935.4827630694. The cubic root of 875128 is about 95.6512228196.

The spelling of 875128 in words is "eight hundred seventy-five thousand, one hundred twenty-eight".