163393 has 2 divisors, whose sum is σ = 163394. Its totient is φ = 163392.

The previous prime is 163367. The next prime is 163403. The reversal of 163393 is 393361.

163393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97344 + 66049 = 312^2 + 257^2 .

It is an emirp because it is prime and its reverse (393361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163393 - 2⁹ = 162881 is a prime.

It is not a weakly prime, because it can be changed into another prime (163363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81696 + 81697.

It is an arithmetic number, because the mean of its divisors is an integer number (81697).

2¹⁶³³⁹³ is an apocalyptic number.

It is an amenable number.

163393 is a deficient number, since it is larger than the sum of its proper divisors (1).

163393 is an equidigital number, since it uses as much as digits as its factorization.

163393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 25.

The square root of 163393 is about 404.2190000482. The cubic root of 163393 is about 54.6694219974.

The spelling of 163393 in words is "one hundred sixty-three thousand, three hundred ninety-three".