131235535 has 8 divisors (see below), whose sum is σ = 157576896. Its totient is φ = 104925600.

The previous prime is 131235521. The next prime is 131235557. The reversal of 131235535 is 535532131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131235535 - 2⁹ = 131235023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2602 + ... + 16408.

It is an arithmetic number, because the mean of its divisors is an integer number (19697112).

Almost surely, 2^131235535 is an apocalyptic number.

131235535 is a deficient number, since it is larger than the sum of its proper divisors (26341361).

131235535 is a wasteful number, since it uses less digits than its factorization.

131235535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15713.

The product of its digits is 6750, while the sum is 28.

The square root of 131235535 is about 11455.8079156383. The cubic root of 131235535 is about 508.1795082951.

Adding to 131235535 its reverse (535532131), we get a palindrome (666767666).

The spelling of 131235535 in words is "one hundred thirty-one million, two hundred thirty-five thousand, five hundred thirty-five".