445531465 has 8 divisors (see below), whose sum is σ = 535513608. Its totient is φ = 355841280.

The previous prime is 445531433. The next prime is 445531469. The reversal of 445531465 is 564135544.

It can be written as a sum of positive squares in 4 ways, for example, as 31449664 + 414081801 = 5608^2 + 20349^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 445531465 - 2⁵ = 445531433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445531469) 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 7 ways as a sum of consecutive naturals, for example, 69616 + ... + 75745.

It is an arithmetic number, because the mean of its divisors is an integer number (66939201).

Almost surely, 2^445531465 is an apocalyptic number.

It is an amenable number.

445531465 is a deficient number, since it is larger than the sum of its proper divisors (89982143).

445531465 is a wasteful number, since it uses less digits than its factorization.

445531465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145979.

The product of its digits is 144000, while the sum is 37.

The square root of 445531465 is about 21107.6162794381. The cubic root of 445531465 is about 763.7644857842.

The spelling of 445531465 in words is "four hundred forty-five million, five hundred thirty-one thousand, four hundred sixty-five".