28133175 has 48 divisors (see below), whose sum is σ = 54496512. Its totient is φ = 12537600.

The previous prime is 28133153. The next prime is 28133177. The reversal of 28133175 is 57133182.

It is not a de Polignac number, because 28133175 - 2⁵ = 28133143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28133177) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20872 + ... + 22178.

It is an arithmetic number, because the mean of its divisors is an integer number (1135344).

Almost surely, 2^28133175 is an apocalyptic number.

28133175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28133175 is a deficient number, since it is larger than the sum of its proper divisors (26363337).

28133175 is a wasteful number, since it uses less digits than its factorization.

28133175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368 (or 1363 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 28133175 is about 5304.0715492912. The cubic root of 28133175 is about 304.1395618140.

The spelling of 28133175 in words is "twenty-eight million, one hundred thirty-three thousand, one hundred seventy-five".