131611716 has 36 divisors (see below), whose sum is σ = 345009392. Its totient is φ = 43870248.

The previous prime is 131611699. The next prime is 131611717. The reversal of 131611716 is 617116131.

131611716 is a `hidden beast` number, since 1 + 31 + 611 + 7 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 131611716.

It is not an unprimeable number, because it can be changed into a prime (131611717) 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 11 ways as a sum of consecutive naturals, for example, 66730 + ... + 68673.

Almost surely, 2^131611716 is an apocalyptic number.

It is an amenable number.

131611716 is an abundant number, since it is smaller than the sum of its proper divisors (213397676).

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

131611716 is a wasteful number, since it uses less digits than its factorization.

131611716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135422 (or 135408 counting only the distinct ones).

The product of its digits is 756, while the sum is 27.

The square root of 131611716 is about 11472.2149561451. The cubic root of 131611716 is about 508.6646033017.

Adding to 131611716 its reverse (617116131), we get a palindrome (748727847).

The spelling of 131611716 in words is "one hundred thirty-one million, six hundred eleven thousand, seven hundred sixteen".