445195481 has 4 divisors (see below), whose sum is σ = 446457012. Its totient is φ = 443933952.

The previous prime is 445195459. The next prime is 445195519. The reversal of 445195481 is 184591544.

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 121771225 + 323424256 = 11035^2 + 17984^2 .

It is a cyclic number.

It is not a de Polignac number, because 445195481 - 2⁶ = 445195417 is a prime.

It is a super-2 number, since 2×445195481² = 396398032605642722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445195411) by changing a digit.

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, 630236 + ... + 630941.

It is an arithmetic number, because the mean of its divisors is an integer number (111614253).

Almost surely, 2^445195481 is an apocalyptic number.

It is an amenable number.

445195481 is a deficient number, since it is larger than the sum of its proper divisors (1261531).

445195481 is a wasteful number, since it uses less digits than its factorization.

445195481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261530.

The product of its digits is 115200, while the sum is 41.

The square root of 445195481 is about 21099.6559450622. The cubic root of 445195481 is about 763.5724475858.

The spelling of 445195481 in words is "four hundred forty-five million, one hundred ninety-five thousand, four hundred eighty-one".