131356756 has 12 divisors (see below), whose sum is σ = 243396468. Its totient is φ = 61814912.

The previous prime is 131356751. The next prime is 131356763. The reversal of 131356756 is 657653131.

It can be written as a sum of positive squares in 2 ways, for example, as 37576900 + 93779856 = 6130^2 + 9684^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131356751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 965791 + ... + 965926.

It is an arithmetic number, because the mean of its divisors is an integer number (20283039).

Almost surely, 2^131356756 is an apocalyptic number.

It is an amenable number.

131356756 is a deficient number, since it is larger than the sum of its proper divisors (112039712).

131356756 is a wasteful number, since it uses less digits than its factorization.

131356756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931738 (or 1931736 counting only the distinct ones).

The product of its digits is 56700, while the sum is 37.

The square root of 131356756 is about 11461.0975041660. The cubic root of 131356756 is about 508.3359269837.

It can be divided in two parts, 13135 and 6756, that added together give a palindrome (19891).

The spelling of 131356756 in words is "one hundred thirty-one million, three hundred fifty-six thousand, seven hundred fifty-six".