445273 has 4 divisors (see below), whose sum is σ = 452880. Its totient is φ = 437668.

The previous prime is 445271. The next prime is 445279. The reversal of 445273 is 372544.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 445273 - 2¹ = 445271 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (445271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3715 + ... + 3832.

It is an arithmetic number, because the mean of its divisors is an integer number (113220).

2⁴⁴⁵²⁷³ is an apocalyptic number.

It is an amenable number.

445273 is a deficient number, since it is larger than the sum of its proper divisors (7607).

445273 is an equidigital number, since it uses as much as digits as its factorization.

445273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7606.

The product of its digits is 3360, while the sum is 25.

The square root of 445273 is about 667.2877939840. The cubic root of 445273 is about 76.3616763652.

The spelling of 445273 in words is "four hundred forty-five thousand, two hundred seventy-three".