44520145 has 16 divisors (see below), whose sum is σ = 54473472. Its totient is φ = 34922880.

The previous prime is 44520143. The next prime is 44520163. The reversal of 44520145 is 54102544.

It is a happy number.

44520145 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 44520145 - 2¹ = 44520143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (44520143) 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, 103080 + ... + 103510.

It is an arithmetic number, because the mean of its divisors is an integer number (3404592).

Almost surely, 2^44520145 is an apocalyptic number.

It is an amenable number.

44520145 is a deficient number, since it is larger than the sum of its proper divisors (9953327).

44520145 is a wasteful number, since it uses less digits than its factorization.

44520145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 44520145 is about 6672.3417928041. The cubic root of 44520145 is about 354.4205185981.

Adding to 44520145 its reverse (54102544), we get a palindrome (98622689).

The spelling of 44520145 in words is "forty-four million, five hundred twenty thousand, one hundred forty-five".