1306085947543 has 16 divisors (see below), whose sum is σ = 1455170431680. Its totient is φ = 1163953195776.

The previous prime is 1306085947541. The next prime is 1306085947577. The reversal of 1306085947543 is 3457495806031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1306085947543 - 2¹ = 1306085947541 is a prime.

It is a super-2 number, since 2×1306085947543² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306085947541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4909771 + ... + 5168947.

It is an arithmetic number, because the mean of its divisors is an integer number (90948151980).

Almost surely, 2^{1306085947543} is an apocalyptic number.

1306085947543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1306085947543 is a deficient number, since it is larger than the sum of its proper divisors (149084484137).

1306085947543 is a wasteful number, since it uses less digits than its factorization.

1306085947543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272586.

The product of its (nonzero) digits is 10886400, while the sum is 55.

The spelling of 1306085947543 in words is "one trillion, three hundred six billion, eighty-five million, nine hundred forty-seven thousand, five hundred forty-three".