228144585 has 16 divisors (see below), whose sum is σ = 365218560. Its totient is φ = 121614720.

The previous prime is 228144577. The next prime is 228144601. The reversal of 228144585 is 585441822.

It is a happy number.

It is not a de Polignac number, because 228144585 - 2³ = 228144577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56256 + ... + 60174.

It is an arithmetic number, because the mean of its divisors is an integer number (22826160).

Almost surely, 2^228144585 is an apocalyptic number.

It is an amenable number.

228144585 is a deficient number, since it is larger than the sum of its proper divisors (137073975).

228144585 is a wasteful number, since it uses less digits than its factorization.

228144585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7808.

The product of its digits is 102400, while the sum is 39.

The square root of 228144585 is about 15104.4557995315. The cubic root of 228144585 is about 611.0405825738.

The spelling of 228144585 in words is "two hundred twenty-eight million, one hundred forty-four thousand, five hundred eighty-five".