228144823 has 2 divisors, whose sum is σ = 228144824. Its totient is φ = 228144822.

The previous prime is 228144817. The next prime is 228144857. The reversal of 228144823 is 328441822.

It is an a-pointer prime, because the next prime (228144857) can be obtained adding 228144823 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228144823 - 2⁹ = 228144311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228144803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114072411 + 114072412.

It is an arithmetic number, because the mean of its divisors is an integer number (114072412).

Almost surely, 2^228144823 is an apocalyptic number.

228144823 is a deficient number, since it is larger than the sum of its proper divisors (1).

228144823 is an equidigital number, since it uses as much as digits as its factorization.

228144823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24576, while the sum is 34.

The square root of 228144823 is about 15104.4636779993. The cubic root of 228144823 is about 611.0407950525.

The spelling of 228144823 in words is "two hundred twenty-eight million, one hundred forty-four thousand, eight hundred twenty-three".