168564323 has 2 divisors, whose sum is σ = 168564324. Its totient is φ = 168564322.

The previous prime is 168564307. The next prime is 168564337. The reversal of 168564323 is 323465861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168564323 - 2⁴ = 168564307 is a prime.

It is equal to p_9427178 and since 168564323 and 9427178 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (168564023) 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, 84282161 + 84282162.

It is an arithmetic number, because the mean of its divisors is an integer number (84282162).

Almost surely, 2^168564323 is an apocalyptic number.

168564323 is a deficient number, since it is larger than the sum of its proper divisors (1).

168564323 is an equidigital number, since it uses as much as digits as its factorization.

168564323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The square root of 168564323 is about 12983.2323787260. The cubic root of 168564323 is about 552.4019719205.

The spelling of 168564323 in words is "one hundred sixty-eight million, five hundred sixty-four thousand, three hundred twenty-three".