45665443 has 4 divisors (see below), whose sum is σ = 45790240. Its totient is φ = 45540648.

The previous prime is 45665423. The next prime is 45665453. The reversal of 45665443 is 34456654.

45665443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45665443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45665413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61848 + ... + 62581.

It is an arithmetic number, because the mean of its divisors is an integer number (11447560).

Almost surely, 2^45665443 is an apocalyptic number.

45665443 is a deficient number, since it is larger than the sum of its proper divisors (124797).

45665443 is a wasteful number, since it uses less digits than its factorization.

45665443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124796.

The product of its digits is 172800, while the sum is 37.

The square root of 45665443 is about 6757.6211050931. The cubic root of 45665443 is about 357.4340250236.

The spelling of 45665443 in words is "forty-five million, six hundred sixty-five thousand, four hundred forty-three".