228512875 has 16 divisors (see below), whose sum is σ = 285618528. Its totient is φ = 182532000.

The previous prime is 228512831. The next prime is 228512881. The reversal of 228512875 is 578215822.

It is not a de Polignac number, because 228512875 - 2⁷ = 228512747 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131764 + ... + 133486.

It is an arithmetic number, because the mean of its divisors is an integer number (17851158).

Almost surely, 2^228512875 is an apocalyptic number.

228512875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

228512875 is a deficient number, since it is larger than the sum of its proper divisors (57105653).

228512875 is a wasteful number, since it uses less digits than its factorization.

228512875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799 (or 2789 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 228512875 is about 15116.6423189808. The cubic root of 228512875 is about 611.3692033499.

The spelling of 228512875 in words is "two hundred twenty-eight million, five hundred twelve thousand, eight hundred seventy-five".