163157171 has 4 divisors (see below), whose sum is σ = 163521000. Its totient is φ = 162793344.

The previous prime is 163157153. The next prime is 163157209. The reversal of 163157171 is 171751361.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163157171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163157471) 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, 181241 + ... + 182138.

It is an arithmetic number, because the mean of its divisors is an integer number (40880250).

Almost surely, 2^163157171 is an apocalyptic number.

163157171 is a deficient number, since it is larger than the sum of its proper divisors (363829).

163157171 is an equidigital number, since it uses as much as digits as its factorization.

163157171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363828.

The product of its digits is 4410, while the sum is 32.

The square root of 163157171 is about 12773.2991431345. The cubic root of 163157171 is about 546.4310744121.

The spelling of 163157171 in words is "one hundred sixty-three million, one hundred fifty-seven thousand, one hundred seventy-one".