28130175 has 72 divisors (see below), whose sum is σ = 53905280. Its totient is φ = 13996800.

The previous prime is 28130159. The next prime is 28130191. The reversal of 28130175 is 57103182.

It is an interprime number because it is at equal distance from previous prime (28130159) and next prime (28130191).

It is not a de Polignac number, because 28130175 - 2⁴ = 28130159 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 258021 + ... + 258129.

Almost surely, 2^28130175 is an apocalyptic number.

28130175 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28130175 is a deficient number, since it is larger than the sum of its proper divisors (25775105).

28130175 is a wasteful number, since it uses less digits than its factorization.

28130175 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 28130175 is about 5303.7887401366. The cubic root of 28130175 is about 304.1287507209.

The spelling of 28130175 in words is "twenty-eight million, one hundred thirty thousand, one hundred seventy-five".