228161056 has 48 divisors (see below), whose sum is σ = 458535168. Its totient is φ = 111731200.

The previous prime is 228161051. The next prime is 228161071. The reversal of 228161056 is 650161822.

228161056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (228161051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 529161 + ... + 529591.

It is an arithmetic number, because the mean of its divisors is an integer number (9552816).

Almost surely, 2^228161056 is an apocalyptic number.

It is an amenable number.

228161056 is an abundant number, since it is smaller than the sum of its proper divisors (230374112).

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

228161056 is a wasteful number, since it uses less digits than its factorization.

228161056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745 (or 737 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 228161056 is about 15105.0010261502. The cubic root of 228161056 is about 611.0552870023.

Subtracting from 228161056 its sum of digits (31), we obtain a square (228161025 = 15105²).

The spelling of 228161056 in words is "two hundred twenty-eight million, one hundred sixty-one thousand, fifty-six".