228630163 has 2 divisors, whose sum is σ = 228630164. Its totient is φ = 228630162.

The previous prime is 228630139. The next prime is 228630167. The reversal of 228630163 is 361036822.

228630163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228630163 is a prime.

It is not a weakly prime, because it can be changed into another prime (228630167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114315081 + 114315082.

It is an arithmetic number, because the mean of its divisors is an integer number (114315082).

Almost surely, 2^228630163 is an apocalyptic number.

228630163 is a deficient number, since it is larger than the sum of its proper divisors (1).

228630163 is an equidigital number, since it uses as much as digits as its factorization.

228630163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 228630163 is about 15120.5212542425. The cubic root of 228630163 is about 611.4737839000.

Adding to 228630163 its reverse (361036822), we get a palindrome (589666985).

The spelling of 228630163 in words is "two hundred twenty-eight million, six hundred thirty thousand, one hundred sixty-three".