163823029 has 2 divisors, whose sum is σ = 163823030. Its totient is φ = 163823028.

The previous prime is 163823027. The next prime is 163823041. The reversal of 163823029 is 920328361.

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., 163788804 + 34225 = 12798^2 + 185^2 .

It is an emirp because it is prime and its reverse (920328361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163823029 - 2¹ = 163823027 is a prime.

Together with 163823027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 163822985 and 163823003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163823027) 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, 81911514 + 81911515.

It is an arithmetic number, because the mean of its divisors is an integer number (81911515).

Almost surely, 2^163823029 is an apocalyptic number.

It is an amenable number.

163823029 is a deficient number, since it is larger than the sum of its proper divisors (1).

163823029 is an equidigital number, since it uses as much as digits as its factorization.

163823029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 163823029 is about 12799.3370531446. The cubic root of 163823029 is about 547.1734090538.

The spelling of 163823029 in words is "one hundred sixty-three million, eight hundred twenty-three thousand, twenty-nine".