131540353 has 12 divisors (see below), whose sum is σ = 153240852. Its totient is φ = 112583520.

The previous prime is 131540333. The next prime is 131540369. The reversal of 131540353 is 353045131.

It can be written as a sum of positive squares in 2 ways, for example, as 119093569 + 12446784 = 10913^2 + 3528^2 .

It is not a de Polignac number, because 131540353 - 2⁹ = 131539841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131540333) 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, 41443 + ... + 44503.

It is an arithmetic number, because the mean of its divisors is an integer number (12770071).

Almost surely, 2^131540353 is an apocalyptic number.

It is an amenable number.

131540353 is a deficient number, since it is larger than the sum of its proper divisors (21700499).

131540353 is an equidigital number, since it uses as much as digits as its factorization.

131540353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3952 (or 3945 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 131540353 is about 11469.1042806315. The cubic root of 131540353 is about 508.5726500014.

Adding to 131540353 its reverse (353045131), we get a palindrome (484585484).

The spelling of 131540353 in words is "one hundred thirty-one million, five hundred forty thousand, three hundred fifty-three".