1445452223243 has 4 divisors (see below), whose sum is σ = 1651945398000. Its totient is φ = 1238959048488.

The previous prime is 1445452223231. The next prime is 1445452223249. The reversal of 1445452223243 is 3423222545441.

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

It is not a de Polignac number, because 1445452223243 - 2⁴ = 1445452223227 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 1445452223243.

It is not an unprimeable number, because it can be changed into a prime (1445452223249) 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, 103246587368 + ... + 103246587381.

It is an arithmetic number, because the mean of its divisors is an integer number (412986349500).

Almost surely, 2^{1445452223243} is an apocalyptic number.

1445452223243 is a deficient number, since it is larger than the sum of its proper divisors (206493174757).

1445452223243 is an equidigital number, since it uses as much as digits as its factorization.

1445452223243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206493174756.

The product of its digits is 921600, while the sum is 41.

Adding to 1445452223243 its reverse (3423222545441), we get a palindrome (4868674768684).

The spelling of 1445452223243 in words is "one trillion, four hundred forty-five billion, four hundred fifty-two million, two hundred twenty-three thousand, two hundred forty-three".