135360506161 has 2 divisors, whose sum is σ = 135360506162. Its totient is φ = 135360506160.

The previous prime is 135360506159. The next prime is 135360506167. The reversal of 135360506161 is 161605063531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96134723136 + 39225783025 = 310056^2 + 198055^2 .

It is a cyclic number.

It is not a de Polignac number, because 135360506161 - 2¹ = 135360506159 is a prime.

Together with 135360506159, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 135360506161.

It is not a weakly prime, because it can be changed into another prime (135360506167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67680253080 + 67680253081.

It is an arithmetic number, because the mean of its divisors is an integer number (67680253081).

Almost surely, 2^135360506161 is an apocalyptic number.

It is an amenable number.

135360506161 is a deficient number, since it is larger than the sum of its proper divisors (1).

135360506161 is an equidigital number, since it uses as much as digits as its factorization.

135360506161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 37.

Adding to 135360506161 its reverse (161605063531), we get a palindrome (296965569692).

The spelling of 135360506161 in words is "one hundred thirty-five billion, three hundred sixty million, five hundred six thousand, one hundred sixty-one".