445147 has 8 divisors (see below), whose sum is σ = 467856. Its totient is φ = 423072.

The previous prime is 445141. The next prime is 445157. The reversal of 445147 is 741544.

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

It is a cyclic number.

It is not a de Polignac number, because 445147 - 2⁷ = 445019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (445141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1848 + ... + 2074.

It is an arithmetic number, because the mean of its divisors is an integer number (58482).

2⁴⁴⁵¹⁴⁷ is an apocalyptic number.

445147 is a deficient number, since it is larger than the sum of its proper divisors (22709).

445147 is a wasteful number, since it uses less digits than its factorization.

445147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317.

The product of its digits is 2240, while the sum is 25.

The square root of 445147 is about 667.1933752669. The cubic root of 445147 is about 76.3544729350.

It can be divided in two parts, 44514 and 7, that added together give a square (44521 = 211²).

The spelling of 445147 in words is "four hundred forty-five thousand, one hundred forty-seven".