131544392156867 has 2 divisors, whose sum is σ = 131544392156868. Its totient is φ = 131544392156866.

The previous prime is 131544392156851. The next prime is 131544392156909. The reversal of 131544392156867 is 768651293445131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131544392156867 - 2⁴ = 131544392156851 is a prime.

It is a super-2 number, since 2×131544392156867² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131544392156267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65772196078433 + 65772196078434.

It is an arithmetic number, because the mean of its divisors is an integer number (65772196078434).

Almost surely, 2^{131544392156867} is an apocalyptic number.

131544392156867 is a deficient number, since it is larger than the sum of its proper divisors (1).

131544392156867 is an equidigital number, since it uses as much as digits as its factorization.

131544392156867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 130636800, while the sum is 65.

The spelling of 131544392156867 in words is "one hundred thirty-one trillion, five hundred forty-four billion, three hundred ninety-two million, one hundred fifty-six thousand, eight hundred sixty-seven".