228145160 has 32 divisors (see below), whose sum is σ = 540345600. Its totient is φ = 86454720.

The previous prime is 228145123. The next prime is 228145187. The reversal of 228145160 is 61541822.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149336 + ... + 150855.

It is an arithmetic number, because the mean of its divisors is an integer number (16885800).

Almost surely, 2^228145160 is an apocalyptic number.

228145160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228145160 is an abundant number, since it is smaller than the sum of its proper divisors (312200440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

228145160 is a wasteful number, since it uses less digits than its factorization.

228145160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300221 (or 300217 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 228145160 is about 15104.4748336379. The cubic root of 228145160 is about 611.0410959150.

Adding to 228145160 its reverse (61541822), we get a palindrome (289686982).

The spelling of 228145160 in words is "two hundred twenty-eight million, one hundred forty-five thousand, one hundred sixty".