131533533 has 12 divisors (see below), whose sum is σ = 191253088. Its totient is φ = 87107400.

The previous prime is 131533513. The next prime is 131533541. The reversal of 131533533 is 335335131.

It is a happy number.

It is not a de Polignac number, because 131533533 - 2⁸ = 131533277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131533497 and 131533506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131533513) 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 in 11 ways as a sum of consecutive naturals, for example, 47035 + ... + 49752.

Almost surely, 2^131533533 is an apocalyptic number.

It is an amenable number.

131533533 is a deficient number, since it is larger than the sum of its proper divisors (59719555).

131533533 is a wasteful number, since it uses less digits than its factorization.

131533533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96944 (or 96941 counting only the distinct ones).

The product of its digits is 6075, while the sum is 27.

The square root of 131533533 is about 11468.8069562618. The cubic root of 131533533 is about 508.5638604923.

Adding to 131533533 its reverse (335335131), we get a palindrome (466868664).

The spelling of 131533533 in words is "one hundred thirty-one million, five hundred thirty-three thousand, five hundred thirty-three".