131726308 has 18 divisors (see below), whose sum is σ = 268157526. Its totient is φ = 56454048.

The previous prime is 131726303. The next prime is 131726311. The reversal of 131726308 is 803627131.

It can be written as a sum of positive squares in only one way, i.e., 124500964 + 7225344 = 11158^2 + 2688^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131726308.

It is not an unprimeable number, because it can be changed into a prime (131726303) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 335841 + ... + 336232.

Almost surely, 2^131726308 is an apocalyptic number.

It is an amenable number.

131726308 is an abundant number, since it is smaller than the sum of its proper divisors (136431218).

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

131726308 is a wasteful number, since it uses less digits than its factorization.

131726308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672091 (or 672082 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 131726308 is about 11477.2081971183. The cubic root of 131726308 is about 508.8121889097.

The spelling of 131726308 in words is "one hundred thirty-one million, seven hundred twenty-six thousand, three hundred eight".