1305948495197 has 2 divisors, whose sum is σ = 1305948495198. Its totient is φ = 1305948495196.

The previous prime is 1305948495193. The next prime is 1305948495287. The reversal of 1305948495197 is 7915948495031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010696451556 + 295252043641 = 1005334^2 + 543371^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305948495197 - 2² = 1305948495193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305948495193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652974247598 + 652974247599.

It is an arithmetic number, because the mean of its divisors is an integer number (652974247599).

Almost surely, 2^{1305948495197} is an apocalyptic number.

It is an amenable number.

1305948495197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305948495197 is an equidigital number, since it uses as much as digits as its factorization.

1305948495197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48988800, while the sum is 65.

The spelling of 1305948495197 in words is "one trillion, three hundred five billion, nine hundred forty-eight million, four hundred ninety-five thousand, one hundred ninety-seven".