445045543 has 4 divisors (see below), whose sum is σ = 445089960. Its totient is φ = 445001128.

The previous prime is 445045541. The next prime is 445045547. The reversal of 445045543 is 345540544.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 445045543 - 2¹ = 445045541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 445045499 and 445045508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445045541) 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, 696 + ... + 29842.

It is an arithmetic number, because the mean of its divisors is an integer number (111272490).

Almost surely, 2^445045543 is an apocalyptic number.

445045543 is a deficient number, since it is larger than the sum of its proper divisors (44417).

445045543 is a wasteful number, since it uses less digits than its factorization.

445045543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44416.

The product of its (nonzero) digits is 96000, while the sum is 34.

The square root of 445045543 is about 21096.1025547375. The cubic root of 445045543 is about 763.4867164214.

The spelling of 445045543 in words is "four hundred forty-five million, forty-five thousand, five hundred forty-three".