112161 has 16 divisors (see below), whose sum is σ = 176000. Its totient is φ = 63504.

The previous prime is 112153. The next prime is 112163. The reversal of 112161 is 161211.

It is a happy number.

It is not a de Polignac number, because 112161 - 2³ = 112153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975 + ... + 1083.

It is an arithmetic number, because the mean of its divisors is an integer number (11000).

2¹¹²¹⁶¹ is an apocalyptic number.

It is an amenable number.

112161 is a deficient number, since it is larger than the sum of its proper divisors (63839).

112161 is an equidigital number, since it uses as much as digits as its factorization.

112161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133 (or 119 counting only the distinct ones).

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

The square root of 112161 is about 334.9044639894. The cubic root of 112161 is about 48.2259314216.

Adding to 112161 its reverse (161211), we get a palindrome (273372).

The spelling of 112161 in words is "one hundred twelve thousand, one hundred sixty-one".