228410561 has 2 divisors, whose sum is σ = 228410562. Its totient is φ = 228410560.

The previous prime is 228410551. The next prime is 228410563. The reversal of 228410561 is 165014822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196420225 + 31990336 = 14015^2 + 5656^2 .

It is a cyclic number.

It is not a de Polignac number, because 228410561 - 2¹⁰ = 228409537 is a prime.

Together with 228410563, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228410563) 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 as a sum of consecutive naturals, namely, 114205280 + 114205281.

It is an arithmetic number, because the mean of its divisors is an integer number (114205281).

Almost surely, 2^228410561 is an apocalyptic number.

It is an amenable number.

228410561 is a deficient number, since it is larger than the sum of its proper divisors (1).

228410561 is an equidigital number, since it uses as much as digits as its factorization.

228410561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 228410561 is about 15113.2577891069. The cubic root of 228410561 is about 611.2779452292.

The spelling of 228410561 in words is "two hundred twenty-eight million, four hundred ten thousand, five hundred sixty-one".