1445456513443 has 4 divisors (see below), whose sum is σ = 1446010543080. Its totient is φ = 1444902483808.

The previous prime is 1445456513407. The next prime is 1445456513447. The reversal of 1445456513443 is 3443156545441.

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

It is a cyclic number.

It is not a de Polignac number, because 1445456513443 - 2²¹ = 1445454416291 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445456513447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277010905 + ... + 277016122.

It is an arithmetic number, because the mean of its divisors is an integer number (361502635770).

Almost surely, 2^{1445456513443} is an apocalyptic number.

1445456513443 is a deficient number, since it is larger than the sum of its proper divisors (554029637).

1445456513443 is an equidigital number, since it uses as much as digits as its factorization.

1445456513443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554029636.

The product of its digits is 6912000, while the sum is 49.

The spelling of 1445456513443 in words is "one trillion, four hundred forty-five billion, four hundred fifty-six million, five hundred thirteen thousand, four hundred forty-three".