44143613 has 2 divisors, whose sum is σ = 44143614. Its totient is φ = 44143612.

The previous prime is 44143609. The next prime is 44143661. The reversal of 44143613 is 31634144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34421689 + 9721924 = 5867^2 + 3118^2 .

It is a cyclic number.

It is not a de Polignac number, because 44143613 - 2² = 44143609 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (44143663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22071806 + 22071807.

It is an arithmetic number, because the mean of its divisors is an integer number (22071807).

Almost surely, 2^44143613 is an apocalyptic number.

It is an amenable number.

44143613 is a deficient number, since it is larger than the sum of its proper divisors (1).

44143613 is an equidigital number, since it uses as much as digits as its factorization.

44143613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 26.

The square root of 44143613 is about 6644.0659990701. The cubic root of 44143613 is about 353.4185102787.

Adding to 44143613 its reverse (31634144), we get a palindrome (75777757).

The spelling of 44143613 in words is "forty-four million, one hundred forty-three thousand, six hundred thirteen".