228986543 has 2 divisors, whose sum is σ = 228986544. Its totient is φ = 228986542.

The previous prime is 228986533. The next prime is 228986561. The reversal of 228986543 is 345689822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228986543 - 2⁶ = 228986479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228986533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114493271 + 114493272.

It is an arithmetic number, because the mean of its divisors is an integer number (114493272).

Almost surely, 2^228986543 is an apocalyptic number.

228986543 is a deficient number, since it is larger than the sum of its proper divisors (1).

228986543 is an equidigital number, since it uses as much as digits as its factorization.

228986543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 47.

The square root of 228986543 is about 15132.3013120939. The cubic root of 228986543 is about 611.7913329863.

The spelling of 228986543 in words is "two hundred twenty-eight million, nine hundred eighty-six thousand, five hundred forty-three".