45144002 has 6 divisors (see below), whose sum is σ = 67730259. Its totient is φ = 22567250.

The previous prime is 45143971. The next prime is 45144007. The reversal of 45144002 is 20044154.

45144002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 22572001 + 22572001 = 4751^2 + 4751^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=4751.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45144007) 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 2 ways as a sum of consecutive naturals, for example, 7127 + ... + 11877.

Almost surely, 2^45144002 is an apocalyptic number.

45144002 is a deficient number, since it is larger than the sum of its proper divisors (22586257).

45144002 is an frugal number, since it uses more digits than its factorization.

45144002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9504 (or 4753 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 45144002 is about 6718.9286348346. The cubic root of 45144002 is about 356.0683336823.

Adding to 45144002 its reverse (20044154), we get a palindrome (65188156).

The spelling of 45144002 in words is "forty-five million, one hundred forty-four thousand, two".