43623145 has 16 divisors (see below), whose sum is σ = 55486080. Its totient is φ = 32832000.

The previous prime is 43623143. The next prime is 43623149. The reversal of 43623145 is 54132634.

43623145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43623145 - 2¹ = 43623143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43623143) 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 15 ways as a sum of consecutive naturals, for example, 12825 + ... + 15865.

It is an arithmetic number, because the mean of its divisors is an integer number (3467880).

Almost surely, 2^43623145 is an apocalyptic number.

It is an amenable number.

43623145 is a deficient number, since it is larger than the sum of its proper divisors (11862935).

43623145 is a wasteful number, since it uses less digits than its factorization.

43623145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216.

The product of its digits is 8640, while the sum is 28.

The square root of 43623145 is about 6604.7819797477. The cubic root of 43623145 is about 352.0240411653.

Adding to 43623145 its reverse (54132634), we get a palindrome (97755779).

The spelling of 43623145 in words is "forty-three million, six hundred twenty-three thousand, one hundred forty-five".