163343317 has 2 divisors, whose sum is σ = 163343318. Its totient is φ = 163343316.

The previous prime is 163343291. The next prime is 163343347. The reversal of 163343317 is 713343361.

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., 112063396 + 51279921 = 10586^2 + 7161^2 .

It is an emirp because it is prime and its reverse (713343361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163343317 - 2¹⁵ = 163310549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163343347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81671658 + 81671659.

It is an arithmetic number, because the mean of its divisors is an integer number (81671659).

Almost surely, 2^163343317 is an apocalyptic number.

It is an amenable number.

163343317 is a deficient number, since it is larger than the sum of its proper divisors (1).

163343317 is an equidigital number, since it uses as much as digits as its factorization.

163343317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 31.

The square root of 163343317 is about 12780.5835938740. The cubic root of 163343317 is about 546.6388031522.

Adding to 163343317 its reverse (713343361), we get a palindrome (876686678).

The spelling of 163343317 in words is "one hundred sixty-three million, three hundred forty-three thousand, three hundred seventeen".