44145 has 20 divisors (see below), whose sum is σ = 79860. Its totient is φ = 23328.

The previous prime is 44131. The next prime is 44159. The reversal of 44145 is 54144.

44145 is digitally balanced in base 2, base 4 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (44131) and next prime (44159).

It can be written as a sum of positive squares in 2 ways, for example, as 23409 + 20736 = 153^2 + 144^2 .

It is not a de Polignac number, because 44145 - 2⁴ = 44129 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

44145 is strictly pandigital in base 6.

44145 is a lucky number.

It is a nialpdrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 351 + ... + 459.

It is an arithmetic number, because the mean of its divisors is an integer number (3993).

2⁴⁴¹⁴⁵ is an apocalyptic number.

44145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44145 is a deficient number, since it is larger than the sum of its proper divisors (35715).

44145 is a wasteful number, since it uses less digits than its factorization.

44145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126 (or 117 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 44145 is about 210.1071155387. The cubic root of 44145 is about 35.3422211730.

Adding to 44145 its reverse (54144), we get a palindrome (98289).

Subtracting 44145 from its reverse (54144), we obtain a palindrome (9999).

The spelling of 44145 in words is "forty-four thousand, one hundred forty-five".