131540553 has 12 divisors (see below), whose sum is σ = 200003440. Its totient is φ = 83078136.

The previous prime is 131540551. The next prime is 131540573. The reversal of 131540553 is 355045131.

It is not a de Polignac number, because 131540553 - 2¹ = 131540551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131540551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 384451 + ... + 384792.

Almost surely, 2^131540553 is an apocalyptic number.

It is an amenable number.

131540553 is a deficient number, since it is larger than the sum of its proper divisors (68462887).

131540553 is a wasteful number, since it uses less digits than its factorization.

131540553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769268 (or 769265 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 131540553 is about 11469.1129997049. The cubic root of 131540553 is about 508.5729077537.

Adding to 131540553 its reverse (355045131), we get a palindrome (486585684).

The spelling of 131540553 in words is "one hundred thirty-one million, five hundred forty thousand, five hundred fifty-three".