44144145 has 24 divisors (see below), whose sum is σ = 78587496. Its totient is φ = 22906368.

The previous prime is 44144143. The next prime is 44144147. The reversal of 44144145 is 54144144.

It is an interprime number because it is at equal distance from previous prime (44144143) and next prime (44144147).

It can be written as a sum of positive squares in 4 ways, for example, as 5803281 + 38340864 = 2409^2 + 6192^2 .

It is not a de Polignac number, because 44144145 - 2¹ = 44144143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44144141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11592 + ... + 14921.

It is an arithmetic number, because the mean of its divisors is an integer number (3274479).

Almost surely, 2^44144145 is an apocalyptic number.

44144145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

44144145 is a deficient number, since it is larger than the sum of its proper divisors (34443351).

44144145 is a wasteful number, since it uses less digits than its factorization.

44144145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26561 (or 26558 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 44144145 is about 6644.1060346746. The cubic root of 44144145 is about 353.4199300227.

Adding to 44144145 its reverse (54144144), we get a palindrome (98288289).

Subtracting 44144145 from its reverse (54144144), we obtain a palindrome (9999999).

The spelling of 44144145 in words is "forty-four million, one hundred forty-four thousand, one hundred forty-five".