228782163 has 16 divisors (see below), whose sum is σ = 308883456. Its totient is φ = 150608640.

The previous prime is 228782143. The next prime is 228782237. The reversal of 228782163 is 361287822.

228782163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228782163 - 2¹⁷ = 228651091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228782123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250678 + ... + 251588.

It is an arithmetic number, because the mean of its divisors is an integer number (19305216).

Almost surely, 2^228782163 is an apocalyptic number.

228782163 is a deficient number, since it is larger than the sum of its proper divisors (80101293).

228782163 is an equidigital number, since it uses as much as digits as its factorization.

228782163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874.

The product of its digits is 64512, while the sum is 39.

The square root of 228782163 is about 15125.5467008634. The cubic root of 228782163 is about 611.6092624158.

The spelling of 228782163 in words is "two hundred twenty-eight million, seven hundred eighty-two thousand, one hundred sixty-three".