168522943 has 2 divisors, whose sum is σ = 168522944. Its totient is φ = 168522942.

The previous prime is 168522917. The next prime is 168522947. The reversal of 168522943 is 349225861.

It is a strong prime.

It is an emirp because it is prime and its reverse (349225861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168522943 - 2⁵ = 168522911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168522896 and 168522905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168522947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84261471 + 84261472.

It is an arithmetic number, because the mean of its divisors is an integer number (84261472).

Almost surely, 2^168522943 is an apocalyptic number.

168522943 is a deficient number, since it is larger than the sum of its proper divisors (1).

168522943 is an equidigital number, since it uses as much as digits as its factorization.

168522943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

The square root of 168522943 is about 12981.6386870071. The cubic root of 168522943 is about 552.3567661025.

The spelling of 168522943 in words is "one hundred sixty-eight million, five hundred twenty-two thousand, nine hundred forty-three".