131336 has 8 divisors (see below), whose sum is σ = 246270. Its totient is φ = 65664.

The previous prime is 131321. The next prime is 131357. The reversal of 131336 is 633131.

It can be written as a sum of positive squares in only one way, i.e., 122500 + 8836 = 350^2 + 94^2 .

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

It is an Ulam number.

It is an unprimeable 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, 8201 + ... + 8216.

2¹³¹³³⁶ is an apocalyptic number.

It is an amenable number.

131336 is a deficient number, since it is larger than the sum of its proper divisors (114934).

131336 is a wasteful number, since it uses less digits than its factorization.

131336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16423 (or 16419 counting only the distinct ones).

The product of its digits is 162, while the sum is 17.

The square root of 131336 is about 362.4030904945. The cubic root of 131336 is about 50.8309151109.

Adding to 131336 its reverse (633131), we get a palindrome (764467).

The spelling of 131336 in words is "one hundred thirty-one thousand, three hundred thirty-six".