162170 has 8 divisors (see below), whose sum is σ = 291924. Its totient is φ = 64864.

The previous prime is 162143. The next prime is 162209. The reversal of 162170 is 71261.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 160801 + 1369 = 401^2 + 37^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 162170.

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 in 3 ways as a sum of consecutive naturals, for example, 8099 + ... + 8118.

2¹⁶²¹⁷⁰ is an apocalyptic number.

162170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

162170 is a deficient number, since it is larger than the sum of its proper divisors (129754).

162170 is a wasteful number, since it uses less digits than its factorization.

162170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16224.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 162170 is about 402.7033647736. The cubic root of 162170 is about 54.5326796682.

Subtracting from 162170 its reverse (71261), we obtain a palindrome (90909).

The spelling of 162170 in words is "one hundred sixty-two thousand, one hundred seventy".