131540333 has 2 divisors, whose sum is σ = 131540334. Its totient is φ = 131540332.

The previous prime is 131540267. The next prime is 131540369. The reversal of 131540333 is 333045131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119727364 + 11812969 = 10942^2 + 3437^2 .

It is a cyclic number.

It is not a de Polignac number, because 131540333 - 2¹⁶ = 131474797 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131540299 and 131540308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131545333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65770166 + 65770167.

It is an arithmetic number, because the mean of its divisors is an integer number (65770167).

Almost surely, 2^131540333 is an apocalyptic number.

It is an amenable number.

131540333 is a deficient number, since it is larger than the sum of its proper divisors (1).

131540333 is an equidigital number, since it uses as much as digits as its factorization.

131540333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 23.

The square root of 131540333 is about 11469.1034087238. The cubic root of 131540333 is about 508.5726242262.

Adding to 131540333 its reverse (333045131), we get a palindrome (464585464).

The spelling of 131540333 in words is "one hundred thirty-one million, five hundred forty thousand, three hundred thirty-three".