228776543 has 2 divisors, whose sum is σ = 228776544. Its totient is φ = 228776542.

The previous prime is 228776521. The next prime is 228776551. The reversal of 228776543 is 345677822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228776543 - 2¹⁸ = 228514399 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 228776494 and 228776503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228770543) 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, 114388271 + 114388272.

It is an arithmetic number, because the mean of its divisors is an integer number (114388272).

Almost surely, 2^228776543 is an apocalyptic number.

228776543 is a deficient number, since it is larger than the sum of its proper divisors (1).

228776543 is an equidigital number, since it uses as much as digits as its factorization.

228776543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 44.

The square root of 228776543 is about 15125.3609213136. The cubic root of 228776543 is about 611.6042543444.

The spelling of 228776543 in words is "two hundred twenty-eight million, seven hundred seventy-six thousand, five hundred forty-three".