168164929 has 2 divisors, whose sum is σ = 168164930. Its totient is φ = 168164928.

The previous prime is 168164921. The next prime is 168164957. The reversal of 168164929 is 929461861.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91164304 + 77000625 = 9548^2 + 8775^2 .

It is a cyclic number.

It is not a de Polignac number, because 168164929 - 2³ = 168164921 is a prime.

It is not a weakly prime, because it can be changed into another prime (168164921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84082464 + 84082465.

It is an arithmetic number, because the mean of its divisors is an integer number (84082465).

Almost surely, 2^168164929 is an apocalyptic number.

It is an amenable number.

168164929 is a deficient number, since it is larger than the sum of its proper divisors (1).

168164929 is an equidigital number, since it uses as much as digits as its factorization.

168164929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 46.

The square root of 168164929 is about 12967.8421103898. The cubic root of 168164929 is about 551.9653423332.

The spelling of 168164929 in words is "one hundred sixty-eight million, one hundred sixty-four thousand, nine hundred twenty-nine".