447145 has 8 divisors (see below), whose sum is σ = 551304. Its totient is φ = 347904.

The previous prime is 447137. The next prime is 447173. The reversal of 447145 is 541744.

It can be written as a sum of positive squares in 4 ways, for example, as 257049 + 190096 = 507^2 + 436^2 .

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 447145 - 2³ = 447137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024 + ... + 1393.

It is an arithmetic number, because the mean of its divisors is an integer number (68913).

2⁴⁴⁷¹⁴⁵ is an apocalyptic number.

It is an amenable number.

447145 is a deficient number, since it is larger than the sum of its proper divisors (104159).

447145 is a wasteful number, since it uses less digits than its factorization.

447145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459.

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

The square root of 447145 is about 668.6890159110. The cubic root of 447145 is about 76.4685390448.

Adding to 447145 its reverse (541744), we get a palindrome (988889).

The spelling of 447145 in words is "four hundred forty-seven thousand, one hundred forty-five".