131368 has 8 divisors (see below), whose sum is σ = 246330. Its totient is φ = 65680.

The previous prime is 131363. The next prime is 131371. The reversal of 131368 is 863131.

It can be written as a sum of positive squares in only one way, i.e., 131044 + 324 = 362^2 + 18^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (131363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8203 + ... + 8218.

2¹³¹³⁶⁸ is an apocalyptic number.

It is an amenable number.

131368 is a deficient number, since it is larger than the sum of its proper divisors (114962).

131368 is a wasteful number, since it uses less digits than its factorization.

131368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16427 (or 16423 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 131368 is about 362.4472375395. The cubic root of 131368 is about 50.8350430910.

Adding to 131368 its reverse (863131), we get a palindrome (994499).

The spelling of 131368 in words is "one hundred thirty-one thousand, three hundred sixty-eight".