168468239 has 2 divisors, whose sum is σ = 168468240. Its totient is φ = 168468238.

The previous prime is 168468199. The next prime is 168468241. The reversal of 168468239 is 932864861.

168468239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (932864861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168468239 - 2¹² = 168464143 is a prime.

It is a super-2 number, since 2×168468239² = 56763095103522242, which contains 22 as substring.

Together with 168468241, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 168468193 and 168468202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168468259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84234119 + 84234120.

It is an arithmetic number, because the mean of its divisors is an integer number (84234120).

Almost surely, 2^168468239 is an apocalyptic number.

168468239 is a deficient number, since it is larger than the sum of its proper divisors (1).

168468239 is an equidigital number, since it uses as much as digits as its factorization.

168468239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 47.

The square root of 168468239 is about 12979.5315400826. The cubic root of 168468239 is about 552.2969930452.

The spelling of 168468239 in words is "one hundred sixty-eight million, four hundred sixty-eight thousand, two hundred thirty-nine".