445331003 has 4 divisors (see below), whose sum is σ = 479587248. Its totient is φ = 411074760.

The previous prime is 445330943. The next prime is 445331011. The reversal of 445331003 is 300133544.

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 445331003 - 2¹² = 445326907 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 445331003.

It is not an unprimeable number, because it can be changed into a prime (445331023) 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, 17128103 + ... + 17128128.

It is an arithmetic number, because the mean of its divisors is an integer number (119896812).

Almost surely, 2^445331003 is an apocalyptic number.

445331003 is a deficient number, since it is larger than the sum of its proper divisors (34256245).

445331003 is a wasteful number, since it uses less digits than its factorization.

445331003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34256244.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 445331003 is about 21102.8671748651. The cubic root of 445331003 is about 763.6499194465.

Adding to 445331003 its reverse (300133544), we get a palindrome (745464547).

The spelling of 445331003 in words is "four hundred forty-five million, three hundred thirty-one thousand, three".