131368771 has 2 divisors, whose sum is σ = 131368772. Its totient is φ = 131368770.

The previous prime is 131368747. The next prime is 131368817. The reversal of 131368771 is 177863131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (177863131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131368771 - 2⁵ = 131368739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131368771.

It is not a weakly prime, because it can be changed into another prime (131368711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65684385 + 65684386.

It is an arithmetic number, because the mean of its divisors is an integer number (65684386).

Almost surely, 2^131368771 is an apocalyptic number.

131368771 is a deficient number, since it is larger than the sum of its proper divisors (1).

131368771 is an equidigital number, since it uses as much as digits as its factorization.

131368771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 37.

The square root of 131368771 is about 11461.6216566418. The cubic root of 131368771 is about 508.3514254124.

The spelling of 131368771 in words is "one hundred thirty-one million, three hundred sixty-eight thousand, seven hundred seventy-one".