1306065465181 has 2 divisors, whose sum is σ = 1306065465182. Its totient is φ = 1306065465180.

The previous prime is 1306065465143. The next prime is 1306065465281. The reversal of 1306065465181 is 1815645606031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1035570816900 + 270494648281 = 1017630^2 + 520091^2 .

It is a cyclic number.

It is not a de Polignac number, because 1306065465181 - 2⁷ = 1306065465053 is a prime.

It is a super-2 number, since 2×1306065465181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1306065465121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653032732590 + 653032732591.

It is an arithmetic number, because the mean of its divisors is an integer number (653032732591).

Almost surely, 2^{1306065465181} is an apocalyptic number.

It is an amenable number.

1306065465181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306065465181 is an equidigital number, since it uses as much as digits as its factorization.

1306065465181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 1306065465181 in words is "one trillion, three hundred six billion, sixty-five million, four hundred sixty-five thousand, one hundred eighty-one".