445020105 has 16 divisors (see below), whose sum is σ = 712609920. Its totient is φ = 237151488.

The previous prime is 445020091. The next prime is 445020137. The reversal of 445020105 is 501020544.

It is not a de Polignac number, because 445020105 - 2⁴ = 445020089 is a prime.

It is a super-2 number, since 2×445020105² = 396085787708422050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8161 + ... + 30929.

It is an arithmetic number, because the mean of its divisors is an integer number (44538120).

Almost surely, 2^445020105 is an apocalyptic number.

It is an amenable number.

445020105 is a deficient number, since it is larger than the sum of its proper divisors (267589815).

445020105 is a wasteful number, since it uses less digits than its factorization.

445020105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24080.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 445020105 is about 21095.4996385485. The cubic root of 445020105 is about 763.4721696366.

Adding to 445020105 its reverse (501020544), we get a palindrome (946040649).

The spelling of 445020105 in words is "four hundred forty-five million, twenty thousand, one hundred five".