445135205 has 4 divisors (see below), whose sum is σ = 534162252. Its totient is φ = 356108160.

The previous prime is 445135177. The next prime is 445135253. The reversal of 445135205 is 502531544.

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

It can be written as a sum of positive squares in 2 ways, for example, as 78872161 + 366263044 = 8881^2 + 19138^2 .

It is not a de Polignac number, because 445135205 - 2²⁴ = 428357989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44513516 + ... + 44513525.

It is an arithmetic number, because the mean of its divisors is an integer number (133540563).

Almost surely, 2^445135205 is an apocalyptic number.

It is an amenable number.

445135205 is a deficient number, since it is larger than the sum of its proper divisors (89027047).

445135205 is an equidigital number, since it uses as much as digits as its factorization.

445135205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89027046.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 445135205 is about 21098.2275321886. The cubic root of 445135205 is about 763.5379854434.

Adding to 445135205 its reverse (502531544), we get a palindrome (947666749).

The spelling of 445135205 in words is "four hundred forty-five million, one hundred thirty-five thousand, two hundred five".