131541267302161 has 2 divisors, whose sum is σ = 131541267302162. Its totient is φ = 131541267302160.

The previous prime is 131541267302129. The next prime is 131541267302183. The reversal of 131541267302161 is 161203762145131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120007643040000 + 11533624262161 = 10954800^2 + 3396119^2 .

It is a cyclic number.

It is not a de Polignac number, because 131541267302161 - 2⁵ = 131541267302129 is a prime.

It is not a weakly prime, because it can be changed into another prime (131541267302101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65770633651080 + 65770633651081.

It is an arithmetic number, because the mean of its divisors is an integer number (65770633651081).

Almost surely, 2^{131541267302161} is an apocalyptic number.

It is an amenable number.

131541267302161 is a deficient number, since it is larger than the sum of its proper divisors (1).

131541267302161 is an equidigital number, since it uses as much as digits as its factorization.

131541267302161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 131541267302161 in words is "one hundred thirty-one trillion, five hundred forty-one billion, two hundred sixty-seven million, three hundred two thousand, one hundred sixty-one".