131168 has 12 divisors (see below), whose sum is σ = 258300. Its totient is φ = 65568.

The previous prime is 131149. The next prime is 131171. The reversal of 131168 is 861131.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

131168 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (3) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2018 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (21525).

2¹³¹¹⁶⁸ is an apocalyptic number.

It is an amenable number.

131168 is a deficient number, since it is larger than the sum of its proper divisors (127132).

131168 is an equidigital number, since it uses as much as digits as its factorization.

131168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109 (or 4101 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

The square root of 131168 is about 362.1712302213. The cubic root of 131168 is about 50.8092322072.

Adding to 131168 its reverse (861131), we get a palindrome (992299).

The spelling of 131168 in words is "one hundred thirty-one thousand, one hundred sixty-eight".