45044145 has 12 divisors (see below), whose sum is σ = 78076596. Its totient is φ = 24023520.

The previous prime is 45044137. The next prime is 45044171. The reversal of 45044145 is 54144054.

It can be written as a sum of positive squares in 2 ways, for example, as 10575504 + 34468641 = 3252^2 + 5871^2 .

It is not a de Polignac number, because 45044145 - 2³ = 45044137 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 500446 + ... + 500535.

It is an arithmetic number, because the mean of its divisors is an integer number (6506383).

Almost surely, 2^45044145 is an apocalyptic number.

45044145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

45044145 is a deficient number, since it is larger than the sum of its proper divisors (33032451).

45044145 is a wasteful number, since it uses less digits than its factorization.

45044145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000992 (or 1000989 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 45044145 is about 6711.4934999596. The cubic root of 45044145 is about 355.8056028473.

Adding to 45044145 its reverse (54144054), we get a palindrome (99188199).

Subtracting 45044145 from its reverse (54144054), we obtain a palindrome (9099909).

It can be divided in two parts, 4504 and 4145, that added together give a square (8649 = 93²).

The spelling of 45044145 in words is "forty-five million, forty-four thousand, one hundred forty-five".