168228443 has 2 divisors, whose sum is σ = 168228444. Its totient is φ = 168228442.

The previous prime is 168228439. The next prime is 168228461. The reversal of 168228443 is 344822861.

It is a weak prime.

It is an emirp because it is prime and its reverse (344822861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168228443 - 2² = 168228439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168228397 and 168228406.

It is not a weakly prime, because it can be changed into another prime (168228493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84114221 + 84114222.

It is an arithmetic number, because the mean of its divisors is an integer number (84114222).

Almost surely, 2^168228443 is an apocalyptic number.

168228443 is a deficient number, since it is larger than the sum of its proper divisors (1).

168228443 is an equidigital number, since it uses as much as digits as its factorization.

168228443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73728, while the sum is 38.

The square root of 168228443 is about 12970.2907831706. The cubic root of 168228443 is about 552.0348239512.

The spelling of 168228443 in words is "one hundred sixty-eight million, two hundred twenty-eight thousand, four hundred forty-three".