447091145 has 16 divisors (see below), whose sum is σ = 559319040. Its totient is φ = 342696000.

The previous prime is 447091133. The next prime is 447091153. The reversal of 447091145 is 541190744.

It is not a de Polignac number, because 447091145 - 2¹² = 447087049 is a prime.

It is a super-2 number, since 2×447091145² = 399780983874822050, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1376 + ... + 29934.

It is an arithmetic number, because the mean of its divisors is an integer number (34957440).

Almost surely, 2^447091145 is an apocalyptic number.

It is an amenable number.

447091145 is a deficient number, since it is larger than the sum of its proper divisors (112227895).

447091145 is a wasteful number, since it uses less digits than its factorization.

447091145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28696.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 447091145 is about 21144.5299072833. The cubic root of 447091145 is about 764.6546891574.

It can be divided in two parts, 44709 and 1145, that added together give a palindrome (45854).

The spelling of 447091145 in words is "four hundred forty-seven million, ninety-one thousand, one hundred forty-five".