131333 has 4 divisors (see below), whose sum is σ = 133548. Its totient is φ = 129120.

The previous prime is 131321. The next prime is 131357. The reversal of 131333 is 333131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6724 + 124609 = 82^2 + 353^2 .

It is a cyclic number.

It is not a de Polignac number, because 131333 - 2⁴ = 131317 is a prime.

It is a Duffinian number.

131333 is a modest number, since divided by 333 gives 131 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131303) 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, 1016 + ... + 1137.

It is an arithmetic number, because the mean of its divisors is an integer number (33387).

2¹³¹³³³ is an apocalyptic number.

It is an amenable number.

131333 is a deficient number, since it is larger than the sum of its proper divisors (2215).

131333 is an equidigital number, since it uses as much as digits as its factorization.

131333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214.

The product of its digits is 81, while the sum is 14.

The square root of 131333 is about 362.3989514334. The cubic root of 131333 is about 50.8305280783.

Adding to 131333 its reverse (333131), we get a palindrome (464464).

It can be divided in two parts, 131 and 333, that added together give a palindrome (464).

The spelling of 131333 in words is "one hundred thirty-one thousand, three hundred thirty-three".