131540353525 has 24 divisors (see below), whose sum is σ = 188061159744. Its totient is φ = 89400864000.

The previous prime is 131540353463. The next prime is 131540353559. The reversal of 131540353525 is 525353045131.

It is not a de Polignac number, because 131540353525 - 2²⁵ = 131506799093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3306151 + ... + 3345700.

It is an arithmetic number, because the mean of its divisors is an integer number (7835881656).

Almost surely, 2^131540353525 is an apocalyptic number.

It is an amenable number.

131540353525 is a deficient number, since it is larger than the sum of its proper divisors (56520806219).

131540353525 is a wasteful number, since it uses less digits than its factorization.

131540353525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6651981 (or 6651976 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 37.

Adding to 131540353525 its reverse (525353045131), we get a palindrome (656893398656).

The spelling of 131540353525 in words is "one hundred thirty-one billion, five hundred forty million, three hundred fifty-three thousand, five hundred twenty-five".