45443 has 4 divisors (see below), whose sum is σ = 47040.
Its totient is φ = 43848.
The previous prime is 45439. The next prime is 45481. The reversal of 45443 is 34454.
Adding to 45443 its reverse (34454), we get a palindrome (79897).
It is a happy number.
It is a semiprime because it is the product of two primes.
It is not a de Polignac number, because 45443 - 22 = 45439 is a prime.
It is a Duffinian number.
It is a plaindrome in base 12 and base 14.
It is not an unprimeable number, because it can be changed into a prime (45403) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755 + ... + 812.
It is an arithmetic number, because the mean of its divisors is an integer number (11760).
245443 is an apocalyptic number.
45443 is a deficient number, since it is larger than the sum of its proper divisors (1597).
45443 is a wasteful number, since it uses less digits than its factorization.
45443 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1596.
The product of its digits is 960, while the sum is 20.
The square root of 45443 is about 213.1736381451.
The cubic root of 45443 is about 35.6852709105.
The spelling of 45443 in words is "forty-five thousand, four hundred forty-three".