44138057 has 2 divisors, whose sum is σ = 44138058. Its totient is φ = 44138056.

The previous prime is 44138051. The next prime is 44138089. The reversal of 44138057 is 75083144.

44138057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (44138089) can be obtained adding 44138057 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30514576 + 13623481 = 5524^2 + 3691^2 .

It is a cyclic number.

It is not a de Polignac number, because 44138057 - 2⁸ = 44137801 is a prime.

It is not a weakly prime, because it can be changed into another prime (44138051) 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 as a sum of consecutive naturals, namely, 22069028 + 22069029.

It is an arithmetic number, because the mean of its divisors is an integer number (22069029).

Almost surely, 2^44138057 is an apocalyptic number.

It is an amenable number.

44138057 is a deficient number, since it is larger than the sum of its proper divisors (1).

44138057 is an equidigital number, since it uses as much as digits as its factorization.

44138057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 44138057 is about 6643.6478684530. The cubic root of 44138057 is about 353.4036823455.

The spelling of 44138057 in words is "forty-four million, one hundred thirty-eight thousand, fifty-seven".