168953329 has 2 divisors, whose sum is σ = 168953330. Its totient is φ = 168953328.

The previous prime is 168953311. The next prime is 168953353. The reversal of 168953329 is 923359861.

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., 167754304 + 1199025 = 12952^2 + 1095^2 .

It is a cyclic number.

It is not a de Polignac number, because 168953329 - 2⁷ = 168953201 is a prime.

It is not a weakly prime, because it can be changed into another prime (168953129) 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, 84476664 + 84476665.

It is an arithmetic number, because the mean of its divisors is an integer number (84476665).

Almost surely, 2^168953329 is an apocalyptic number.

It is an amenable number.

168953329 is a deficient number, since it is larger than the sum of its proper divisors (1).

168953329 is an equidigital number, since it uses as much as digits as its factorization.

168953329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 46.

The square root of 168953329 is about 12998.2048375920. The cubic root of 168953329 is about 552.8265825107.

The spelling of 168953329 in words is "one hundred sixty-eight million, nine hundred fifty-three thousand, three hundred twenty-nine".