163816093 has 4 divisors (see below), whose sum is σ = 187218400. Its totient is φ = 140413788.

The previous prime is 163816067. The next prime is 163816109. The reversal of 163816093 is 390618361.

163816093 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163816093 - 2⁹ = 163815581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163816193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11701143 + ... + 11701156.

It is an arithmetic number, because the mean of its divisors is an integer number (46804600).

Almost surely, 2^163816093 is an apocalyptic number.

It is an amenable number.

163816093 is a deficient number, since it is larger than the sum of its proper divisors (23402307).

163816093 is an equidigital number, since it uses as much as digits as its factorization.

163816093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23402306.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 163816093 is about 12799.0660987433. The cubic root of 163816093 is about 547.1656868015.

The spelling of 163816093 in words is "one hundred sixty-three million, eight hundred sixteen thousand, ninety-three".