445313543 has 4 divisors (see below), whose sum is σ = 459678528. Its totient is φ = 430948560.

The previous prime is 445313527. The next prime is 445313569. The reversal of 445313543 is 345313544.

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 445313543 - 2⁴ = 445313527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445313503) 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, 7182446 + ... + 7182507.

It is an arithmetic number, because the mean of its divisors is an integer number (114919632).

Almost surely, 2^445313543 is an apocalyptic number.

445313543 is a deficient number, since it is larger than the sum of its proper divisors (14364985).

445313543 is a wasteful number, since it uses less digits than its factorization.

445313543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14364984.

The product of its digits is 43200, while the sum is 32.

The square root of 445313543 is about 21102.4534829484. The cubic root of 445313543 is about 763.6399392282.

Subtracting from 445313543 its reverse (345313544), we obtain a palindrome (99999999).

The spelling of 445313543 in words is "four hundred forty-five million, three hundred thirteen thousand, five hundred forty-three".