445147911 has 48 divisors (see below), whose sum is σ = 739554816. Its totient is φ = 255866688.

The previous prime is 445147889. The next prime is 445147939. The reversal of 445147911 is 119741544.

It is not a de Polignac number, because 445147911 - 2⁹ = 445147399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445147981) 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 47 ways as a sum of consecutive naturals, for example, 113790 + ... + 117636.

It is an arithmetic number, because the mean of its divisors is an integer number (15407392).

Almost surely, 2^445147911 is an apocalyptic number.

445147911 is a deficient number, since it is larger than the sum of its proper divisors (294406905).

445147911 is a wasteful number, since it uses less digits than its factorization.

445147911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3932 (or 3929 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 445147911 is about 21098.5286453819. The cubic root of 445147911 is about 763.5452502184.

It can be divided in two parts, 44514 and 7911, that added together give a palindrome (52425).

The spelling of 445147911 in words is "four hundred forty-five million, one hundred forty-seven thousand, nine hundred eleven".