228175985 has 8 divisors (see below), whose sum is σ = 285716160. Its totient is φ = 174604144.

The previous prime is 228175967. The next prime is 228175991. The reversal of 228175985 is 589571822.

228175985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 228175985 - 2⁸ = 228175729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 991955 + ... + 992184.

It is an arithmetic number, because the mean of its divisors is an integer number (35714520).

Almost surely, 2^228175985 is an apocalyptic number.

It is an amenable number.

228175985 is a deficient number, since it is larger than the sum of its proper divisors (57540175).

228175985 is a wasteful number, since it uses less digits than its factorization.

228175985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1984167.

The product of its digits is 403200, while the sum is 47.

The square root of 228175985 is about 15105.4951921478. The cubic root of 228175985 is about 611.0686142043.

The spelling of 228175985 in words is "two hundred twenty-eight million, one hundred seventy-five thousand, nine hundred eighty-five".