45244223 has 4 divisors (see below), whose sum is σ = 45287928. Its totient is φ = 45200520.

The previous prime is 45244163. The next prime is 45244237. The reversal of 45244223 is 32244254.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 45244223 - 2¹⁸ = 44982079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45244192 and 45244201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45244273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20261 + ... + 22382.

It is an arithmetic number, because the mean of its divisors is an integer number (11321982).

Almost surely, 2^45244223 is an apocalyptic number.

45244223 is a deficient number, since it is larger than the sum of its proper divisors (43705).

45244223 is a wasteful number, since it uses less digits than its factorization.

45244223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43704.

The product of its digits is 7680, while the sum is 26.

The square root of 45244223 is about 6726.3826088024. The cubic root of 45244223 is about 356.3316329600.

Adding to 45244223 its reverse (32244254), we get a palindrome (77488477).

The spelling of 45244223 in words is "forty-five million, two hundred forty-four thousand, two hundred twenty-three".