45681243 has 8 divisors (see below), whose sum is σ = 63556608. Its totient is φ = 29130024.

The previous prime is 45681211. The next prime is 45681269. The reversal of 45681243 is 34218654.

45681243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45681243 - 2⁵ = 45681211 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (45681043) 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 7 ways as a sum of consecutive naturals, for example, 330955 + ... + 331092.

It is an arithmetic number, because the mean of its divisors is an integer number (7944576).

Almost surely, 2^45681243 is an apocalyptic number.

45681243 is a deficient number, since it is larger than the sum of its proper divisors (17875365).

45681243 is a wasteful number, since it uses less digits than its factorization.

45681243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662073.

The product of its digits is 23040, while the sum is 33.

The square root of 45681243 is about 6758.7900544402. The cubic root of 45681243 is about 357.4752436930.

Adding to 45681243 its reverse (34218654), we get a palindrome (79899897).

The spelling of 45681243 in words is "forty-five million, six hundred eighty-one thousand, two hundred forty-three".