1305494948837 has 2 divisors, whose sum is σ = 1305494948838. Its totient is φ = 1305494948836.

The previous prime is 1305494948801. The next prime is 1305494948903. The reversal of 1305494948837 is 7388494945031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 720952129921 + 584542818916 = 849089^2 + 764554^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305494948837 - 2⁸ = 1305494948581 is a prime.

It is a super-2 number, since 2×1305494948837² (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 (1305497948837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652747474418 + 652747474419.

It is an arithmetic number, because the mean of its divisors is an integer number (652747474419).

Almost surely, 2^{1305494948837} is an apocalyptic number.

It is an amenable number.

1305494948837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305494948837 is an equidigital number, since it uses as much as digits as its factorization.

1305494948837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104509440, while the sum is 65.

The spelling of 1305494948837 in words is "one trillion, three hundred five billion, four hundred ninety-four million, nine hundred forty-eight thousand, eight hundred thirty-seven".