445104313021 has 2 divisors, whose sum is σ = 445104313022. Its totient is φ = 445104313020.

The previous prime is 445104313007. The next prime is 445104313039. The reversal of 445104313021 is 120313401544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 280804608100 + 164299704921 = 529910^2 + 405339^2 .

It is a cyclic number.

It is not a de Polignac number, because 445104313021 - 2⁷ = 445104312893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (445105313021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222552156510 + 222552156511.

It is an arithmetic number, because the mean of its divisors is an integer number (222552156511).

Almost surely, 2^445104313021 is an apocalyptic number.

It is an amenable number.

445104313021 is a deficient number, since it is larger than the sum of its proper divisors (1).

445104313021 is an equidigital number, since it uses as much as digits as its factorization.

445104313021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 445104313021 its reverse (120313401544), we get a palindrome (565417714565).

The spelling of 445104313021 in words is "four hundred forty-five billion, one hundred four million, three hundred thirteen thousand, twenty-one".