228875321 has 2 divisors, whose sum is σ = 228875322. Its totient is φ = 228875320.

The previous prime is 228875291. The next prime is 228875327. The reversal of 228875321 is 123578822.

228875321 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 can be written as a sum of positive squares in only one way, i.e., 197009296 + 31866025 = 14036^2 + 5645^2 .

It is a cyclic number.

It is not a de Polignac number, because 228875321 - 2²⁶ = 161766457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228875327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114437660 + 114437661.

It is an arithmetic number, because the mean of its divisors is an integer number (114437661).

Almost surely, 2^228875321 is an apocalyptic number.

It is an amenable number.

228875321 is a deficient number, since it is larger than the sum of its proper divisors (1).

228875321 is an equidigital number, since it uses as much as digits as its factorization.

228875321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

The square root of 228875321 is about 15128.6258794380. The cubic root of 228875321 is about 611.6922650463.

The spelling of 228875321 in words is "two hundred twenty-eight million, eight hundred seventy-five thousand, three hundred twenty-one".