163113193 has 2 divisors, whose sum is σ = 163113194. Its totient is φ = 163113192.

The previous prime is 163113191. The next prime is 163113221. The reversal of 163113193 is 391311361.

It is an a-pointer prime, because the next prime (163113221) can be obtained adding 163113193 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162894169 + 219024 = 12763^2 + 468^2 .

It is a cyclic number.

It is not a de Polignac number, because 163113193 - 2¹ = 163113191 is a prime.

Together with 163113191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (163113191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81556596 + 81556597.

It is an arithmetic number, because the mean of its divisors is an integer number (81556597).

Almost surely, 2^163113193 is an apocalyptic number.

It is an amenable number.

163113193 is a deficient number, since it is larger than the sum of its proper divisors (1).

163113193 is an equidigital number, since it uses as much as digits as its factorization.

163113193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 28.

The square root of 163113193 is about 12771.5775454718. The cubic root of 163113193 is about 546.3819743019.

It can be divided in two parts, 163113 and 193, that added together give a triangular number (163306 = T₅₇₁).

The spelling of 163113193 in words is "one hundred sixty-three million, one hundred thirteen thousand, one hundred ninety-three".