1315443444445 has 16 divisors (see below), whose sum is σ = 1701559993392. Its totient is φ = 970488783360.

The previous prime is 1315443444421. The next prime is 1315443444461. The reversal of 1315443444445 is 5444443445131.

It can be written as a sum of positive squares in 8 ways, for example, as 7025457124 + 1308417987321 = 83818^2 + 1143861^2 .

It is not a de Polignac number, because 1315443444445 - 2³³ = 1306853509853 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1315443444395 and 1315443444404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9468072 + ... + 9606001.

It is an arithmetic number, because the mean of its divisors is an integer number (106347499587).

Almost surely, 2^{1315443444445} is an apocalyptic number.

It is an amenable number.

1315443444445 is a deficient number, since it is larger than the sum of its proper divisors (386116548947).

1315443444445 is a wasteful number, since it uses less digits than its factorization.

1315443444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19075152.

The product of its digits is 3686400, while the sum is 46.

Adding to 1315443444445 its reverse (5444443445131), we get a palindrome (6759886889576).

The spelling of 1315443444445 in words is "one trillion, three hundred fifteen billion, four hundred forty-three million, four hundred forty-four thousand, four hundred forty-five".