168223043 has 2 divisors, whose sum is σ = 168223044. Its totient is φ = 168223042.

The previous prime is 168223039. The next prime is 168223063. The reversal of 168223043 is 340322861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168223043 - 2² = 168223039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168222997 and 168223015.

It is not a weakly prime, because it can be changed into another prime (168223063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84111521 + 84111522.

It is an arithmetic number, because the mean of its divisors is an integer number (84111522).

Almost surely, 2^168223043 is an apocalyptic number.

168223043 is a deficient number, since it is larger than the sum of its proper divisors (1).

168223043 is an equidigital number, since it uses as much as digits as its factorization.

168223043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 168223043 is about 12970.0826134609. The cubic root of 168223043 is about 552.0289172609.

The spelling of 168223043 in words is "one hundred sixty-eight million, two hundred twenty-three thousand, forty-three".