163344871 has 4 divisors (see below), whose sum is σ = 164323152. Its totient is φ = 162366592.

The previous prime is 163344851. The next prime is 163344889. The reversal of 163344871 is 178443361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163344871 - 2¹⁵ = 163312103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 163344871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163344821) 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 in 3 ways as a sum of consecutive naturals, for example, 488890 + ... + 489223.

It is an arithmetic number, because the mean of its divisors is an integer number (41080788).

Almost surely, 2^163344871 is an apocalyptic number.

163344871 is a deficient number, since it is larger than the sum of its proper divisors (978281).

163344871 is an equidigital number, since it uses as much as digits as its factorization.

163344871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978280.

The product of its digits is 48384, while the sum is 37.

The square root of 163344871 is about 12780.6443890752. The cubic root of 163344871 is about 546.6405366666.

The spelling of 163344871 in words is "one hundred sixty-three million, three hundred forty-four thousand, eight hundred seventy-one".