163983193 has 8 divisors (see below), whose sum is σ = 180370656. Its totient is φ = 149074420.

The previous prime is 163983191. The next prime is 163983199. The reversal of 163983193 is 391389361.

It is a happy number.

It is not a de Polignac number, because 163983193 - 2¹ = 163983191 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163983191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60271 + ... + 62932.

It is an arithmetic number, because the mean of its divisors is an integer number (22546332).

Almost surely, 2^163983193 is an apocalyptic number.

It is an amenable number.

163983193 is a deficient number, since it is larger than the sum of its proper divisors (16387463).

163983193 is an equidigital number, since it uses as much as digits as its factorization.

163983193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123236 (or 123214 counting only the distinct ones).

The product of its digits is 104976, while the sum is 43.

The square root of 163983193 is about 12805.5922549486. The cubic root of 163983193 is about 547.3516683578.

It can be divided in two parts, 16398 and 3193, that added together give a palindrome (19591).

The spelling of 163983193 in words is "one hundred sixty-three million, nine hundred eighty-three thousand, one hundred ninety-three".