168263743 has 2 divisors, whose sum is σ = 168263744. Its totient is φ = 168263742.

The previous prime is 168263741. The next prime is 168263749. The reversal of 168263743 is 347362861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168263743 - 2¹ = 168263741 is a prime.

Together with 168263741, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 168263696 and 168263705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168263741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84131871 + 84131872.

It is an arithmetic number, because the mean of its divisors is an integer number (84131872).

Almost surely, 2^168263743 is an apocalyptic number.

168263743 is a deficient number, since it is larger than the sum of its proper divisors (1).

168263743 is an equidigital number, since it uses as much as digits as its factorization.

168263743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 168263743 is about 12971.6515139746. The cubic root of 168263743 is about 552.0734330911.

The spelling of 168263743 in words is "one hundred sixty-eight million, two hundred sixty-three thousand, seven hundred forty-three".