228133160 has 16 divisors (see below), whose sum is σ = 513299700. Its totient is φ = 91253248.

The previous prime is 228133151. The next prime is 228133163. The reversal of 228133160 is 61331822.

It can be written as a sum of positive squares in 2 ways, for example, as 224220676 + 3912484 = 14974^2 + 1978^2 .

It is not an unprimeable number, because it can be changed into a prime (228133163) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2851625 + ... + 2851704.

Almost surely, 2^228133160 is an apocalyptic number.

228133160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228133160 is an abundant number, since it is smaller than the sum of its proper divisors (285166540).

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

228133160 is a wasteful number, since it uses less digits than its factorization.

228133160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5703340 (or 5703336 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 228133160 is about 15104.0775951397. The cubic root of 228133160 is about 611.0303825286.

Adding to 228133160 its reverse (61331822), we get a palindrome (289464982).

The spelling of 228133160 in words is "two hundred twenty-eight million, one hundred thirty-three thousand, one hundred sixty".