1445643052345 has 4 divisors (see below), whose sum is σ = 1734771662820. Its totient is φ = 1156514441872.

The previous prime is 1445643052333. The next prime is 1445643052361. The reversal of 1445643052345 is 5432503465441.

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 156480371776 + 1289162680569 = 395576^2 + 1135413^2 .

It is a cyclic number.

It is not a de Polignac number, because 1445643052345 - 2⁹ = 1445643051833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1445643052295 and 1445643052304.

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, 144564305230 + ... + 144564305239.

It is an arithmetic number, because the mean of its divisors is an integer number (433692915705).

Almost surely, 2^{1445643052345} is an apocalyptic number.

It is an amenable number.

1445643052345 is a deficient number, since it is larger than the sum of its proper divisors (289128610475).

1445643052345 is an equidigital number, since it uses as much as digits as its factorization.

1445643052345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289128610474.

The product of its (nonzero) digits is 3456000, while the sum is 46.

The spelling of 1445643052345 in words is "one trillion, four hundred forty-five billion, six hundred forty-three million, fifty-two thousand, three hundred forty-five".