131165591251829 has 2 divisors, whose sum is σ = 131165591251830. Its totient is φ = 131165591251828.

The previous prime is 131165591251817. The next prime is 131165591251979. The reversal of 131165591251829 is 928152195561131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127285735281604 + 3879855970225 = 11282098^2 + 1969735^2 .

It is a cyclic number.

It is not a de Polignac number, because 131165591251829 - 2⁴⁰ = 130066079624053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131165591250829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65582795625914 + 65582795625915.

It is an arithmetic number, because the mean of its divisors is an integer number (65582795625915).

Almost surely, 2^{131165591251829} is an apocalyptic number.

It is an amenable number.

131165591251829 is a deficient number, since it is larger than the sum of its proper divisors (1).

131165591251829 is an equidigital number, since it uses as much as digits as its factorization.

131165591251829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832000, while the sum is 59.

The spelling of 131165591251829 in words is "one hundred thirty-one trillion, one hundred sixty-five billion, five hundred ninety-one million, two hundred fifty-one thousand, eight hundred twenty-nine".