163853189 has 4 divisors (see below), whose sum is σ = 165927360. Its totient is φ = 161779020.

The previous prime is 163853159. The next prime is 163853201. The reversal of 163853189 is 981358361.

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 163853189 - 2¹² = 163849093 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 (163853159) 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, 1036967 + ... + 1037124.

It is an arithmetic number, because the mean of its divisors is an integer number (41481840).

Almost surely, 2^163853189 is an apocalyptic number.

It is an amenable number.

163853189 is a deficient number, since it is larger than the sum of its proper divisors (2074171).

163853189 is an equidigital number, since it uses as much as digits as its factorization.

163853189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2074170.

The product of its digits is 155520, while the sum is 44.

The square root of 163853189 is about 12800.5151849447. The cubic root of 163853189 is about 547.2069854024.

The spelling of 163853189 in words is "one hundred sixty-three million, eight hundred fifty-three thousand, one hundred eighty-nine".