445530313 has 8 divisors (see below), whose sum is σ = 456823080. Its totient is φ = 434257920.

The previous prime is 445530307. The next prime is 445530329. The reversal of 445530313 is 313035544.

It can be written as a sum of positive squares in 4 ways, for example, as 31326409 + 414203904 = 5597^2 + 20352^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-445530313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445530913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45433 + ... + 54361.

It is an arithmetic number, because the mean of its divisors is an integer number (57102885).

Almost surely, 2^445530313 is an apocalyptic number.

It is an amenable number.

445530313 is a deficient number, since it is larger than the sum of its proper divisors (11292767).

445530313 is a wasteful number, since it uses less digits than its factorization.

445530313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10187.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 445530313 is about 21107.5889906924. The cubic root of 445530313 is about 763.7638275011.

Adding to 445530313 its reverse (313035544), we get a palindrome (758565857).

The spelling of 445530313 in words is "four hundred forty-five million, five hundred thirty thousand, three hundred thirteen".