1306575283385 has 8 divisors (see below), whose sum is σ = 1567897920456. Its totient is φ = 1045255173120.

The previous prime is 1306575283357. The next prime is 1306575283417. The reversal of 1306575283385 is 5833825756031.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 269216737321 + 1037358546064 = 518861^2 + 1018508^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1306575283385 - 2¹⁰ = 1306575282361 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1306575283385.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 801497 + ... + 1804313.

It is an arithmetic number, because the mean of its divisors is an integer number (195987240057).

Almost surely, 2^{1306575283385} is an apocalyptic number.

It is an amenable number.

1306575283385 is a deficient number, since it is larger than the sum of its proper divisors (261322637071).

1306575283385 is a wasteful number, since it uses less digits than its factorization.

1306575283385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263403.

The product of its (nonzero) digits is 18144000, while the sum is 56.

The spelling of 1306575283385 in words is "one trillion, three hundred six billion, five hundred seventy-five million, two hundred eighty-three thousand, three hundred eighty-five".