1305305462345 has 4 divisors (see below), whose sum is σ = 1566366554820. Its totient is φ = 1044244369872.

The previous prime is 1305305462299. The next prime is 1305305462353. The reversal of 1305305462345 is 5432645035031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 966660609721 + 338644852624 = 983189^2 + 581932^2 .

It is a cyclic number.

It is not a de Polignac number, because 1305305462345 - 2¹⁸ = 1305305200201 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130530546230 + ... + 130530546239.

It is an arithmetic number, because the mean of its divisors is an integer number (391591638705).

Almost surely, 2^{1305305462345} is an apocalyptic number.

It is an amenable number.

1305305462345 is a deficient number, since it is larger than the sum of its proper divisors (261061092475).

1305305462345 is an equidigital number, since it uses as much as digits as its factorization.

1305305462345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261061092474.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 1305305462345 in words is "one trillion, three hundred five billion, three hundred five million, four hundred sixty-two thousand, three hundred forty-five".