131136756 has 24 divisors (see below), whose sum is σ = 313102944. Its totient is φ = 42695520.

The previous prime is 131136751. The next prime is 131136809. The reversal of 131136756 is 657631131.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131136751) 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 7 ways as a sum of consecutive naturals, for example, 126555 + ... + 127586.

It is an arithmetic number, because the mean of its divisors is an integer number (13045956).

Almost surely, 2^131136756 is an apocalyptic number.

It is an amenable number.

131136756 is an abundant number, since it is smaller than the sum of its proper divisors (181966188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131136756 is a wasteful number, since it uses less digits than its factorization.

131136756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254191 (or 254189 counting only the distinct ones).

The product of its digits is 11340, while the sum is 33.

The square root of 131136756 is about 11451.4957974930. The cubic root of 131136756 is about 508.0519766191.

Adding to 131136756 its reverse (657631131), we get a palindrome (788767887).

The spelling of 131136756 in words is "one hundred thirty-one million, one hundred thirty-six thousand, seven hundred fifty-six".