168324139 has 2 divisors, whose sum is σ = 168324140. Its totient is φ = 168324138.

The previous prime is 168324119. The next prime is 168324151. The reversal of 168324139 is 931423861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168324139 - 2²¹ = 166226987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168324098 and 168324107.

It is not a weakly prime, because it can be changed into another prime (168324119) 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, 84162069 + 84162070.

It is an arithmetic number, because the mean of its divisors is an integer number (84162070).

Almost surely, 2^168324139 is an apocalyptic number.

168324139 is a deficient number, since it is larger than the sum of its proper divisors (1).

168324139 is an equidigital number, since it uses as much as digits as its factorization.

168324139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 37.

The square root of 168324139 is about 12973.9793047469. The cubic root of 168324139 is about 552.1394782927.

The spelling of 168324139 in words is "one hundred sixty-eight million, three hundred twenty-four thousand, one hundred thirty-nine".