1305907052917 has 2 divisors, whose sum is σ = 1305907052918. Its totient is φ = 1305907052916.

The previous prime is 1305907052837. The next prime is 1305907052939. The reversal of 1305907052917 is 7192507095031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 676274324881 + 629632728036 = 822359^2 + 793494^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305907052917 - 2²⁷ = 1305772835189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305907052117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652953526458 + 652953526459.

It is an arithmetic number, because the mean of its divisors is an integer number (652953526459).

Almost surely, 2^{1305907052917} is an apocalyptic number.

It is an amenable number.

1305907052917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305907052917 is an equidigital number, since it uses as much as digits as its factorization.

1305907052917 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 595350, while the sum is 49.

The spelling of 1305907052917 in words is "one trillion, three hundred five billion, nine hundred seven million, fifty-two thousand, nine hundred seventeen".