131251533 has 16 divisors (see below), whose sum is σ = 200749056. Its totient is φ = 74720880.

The previous prime is 131251531. The next prime is 131251541. The reversal of 131251533 is 335152131.

It is not a de Polignac number, because 131251533 - 2¹ = 131251531 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131251531) 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 15 ways as a sum of consecutive naturals, for example, 5841 + ... + 17222.

It is an arithmetic number, because the mean of its divisors is an integer number (12546816).

Almost surely, 2^131251533 is an apocalyptic number.

It is an amenable number.

131251533 is a deficient number, since it is larger than the sum of its proper divisors (69497523).

131251533 is a wasteful number, since it uses less digits than its factorization.

131251533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23344.

The product of its digits is 1350, while the sum is 24.

The square root of 131251533 is about 11456.5061427994. The cubic root of 131251533 is about 508.2001569846.

The spelling of 131251533 in words is "one hundred thirty-one million, two hundred fifty-one thousand, five hundred thirty-three".