162111 has 4 divisors (see below), whose sum is σ = 216152. Its totient is φ = 108072.

The previous prime is 162109. The next prime is 162119. The reversal of 162111 is 111261.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111261 = 3 ⋅37087.

It is not a de Polignac number, because 162111 - 2¹ = 162109 is a prime.

It is a D-number.

It is a Duffinian number.

162111 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27016 + ... + 27021.

It is an arithmetic number, because the mean of its divisors is an integer number (54038).

2¹⁶²¹¹¹ is an apocalyptic number.

162111 is a deficient number, since it is larger than the sum of its proper divisors (54041).

162111 is an equidigital number, since it uses as much as digits as its factorization.

162111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54040.

The product of its digits is 12, while the sum is 12.

The square root of 162111 is about 402.6301031965. The cubic root of 162111 is about 54.5260655835.

Adding to 162111 its reverse (111261), we get a palindrome (273372).

The spelling of 162111 in words is "one hundred sixty-two thousand, one hundred eleven".