162171 has 12 divisors (see below), whose sum is σ = 241072. Its totient is φ = 104976.

The previous prime is 162143. The next prime is 162209. The reversal of 162171 is 171261.

It is not a de Polignac number, because 162171 - 2⁹ = 161659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90 + ... + 576.

2¹⁶²¹⁷¹ is an apocalyptic number.

162171 is a deficient number, since it is larger than the sum of its proper divisors (78901).

162171 is a wasteful number, since it uses less digits than its factorization.

162171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 527 counting only the distinct ones).

The product of its digits is 84, while the sum is 18.

The square root of 162171 is about 402.7046063804. The cubic root of 162171 is about 54.5327917575.

It can be divided in two parts, 162 and 171, that added together give a palindrome (333).

The spelling of 162171 in words is "one hundred sixty-two thousand, one hundred seventy-one".