162321 has 8 divisors (see below), whose sum is σ = 220224. Its totient is φ = 106320.

The previous prime is 162293. The next prime is 162343. The reversal of 162321 is 123261.

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

It is not a de Polignac number, because 162321 - 2⁵ = 162289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162321.

It is not an unprimeable number, because it can be changed into a prime (162391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261 + ... + 626.

It is an arithmetic number, because the mean of its divisors is an integer number (27528).

2¹⁶²³²¹ is an apocalyptic number.

It is an amenable number.

162321 is a deficient number, since it is larger than the sum of its proper divisors (57903).

162321 is an equidigital number, since it uses as much as digits as its factorization.

162321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951.

The product of its digits is 72, while the sum is 15.

The square root of 162321 is about 402.8908040648. The cubic root of 162321 is about 54.5495999375.

Adding to 162321 its reverse (123261), we get a palindrome (285582).

Subtracting from 162321 its reverse (123261), we obtain a triangular number (39060 = T₂₇₉).

The spelling of 162321 in words is "one hundred sixty-two thousand, three hundred twenty-one".