216162 has 16 divisors (see below), whose sum is σ = 480480. Its totient is φ = 72036.

The previous prime is 216157. The next prime is 216173. The reversal of 216162 is 261612.

It is a happy number.

216162 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

216162 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948 + ... + 2055.

It is an arithmetic number, because the mean of its divisors is an integer number (30030).

2²¹⁶¹⁶² is an apocalyptic number.

216162 is an abundant number, since it is smaller than the sum of its proper divisors (264318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

216162 is a wasteful number, since it uses less digits than its factorization.

216162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4014 (or 4008 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 216162 is about 464.9322531294. The cubic root of 216162 is about 60.0149962516.

Adding to 216162 its reverse (261612), we get a palindrome (477774).

It can be divided in two parts, 216 and 162, that added together give a triangular number (378 = T₂₇).

The spelling of 216162 in words is "two hundred sixteen thousand, one hundred sixty-two".