162172 has 6 divisors (see below), whose sum is σ = 283808. Its totient is φ = 81084.

The previous prime is 162143. The next prime is 162209. The reversal of 162172 is 271261.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20268 + ... + 20275.

2¹⁶²¹⁷² is an apocalyptic number.

It is an amenable number.

162172 is a deficient number, since it is larger than the sum of its proper divisors (121636).

162172 is a wasteful number, since it uses less digits than its factorization.

162172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40547 (or 40545 counting only the distinct ones).

The product of its digits is 168, while the sum is 19.

The square root of 162172 is about 402.7058479834. The cubic root of 162172 is about 54.5329038464.

The spelling of 162172 in words is "one hundred sixty-two thousand, one hundred seventy-two".