44139241 has 2 divisors, whose sum is σ = 44139242. Its totient is φ = 44139240.

The previous prime is 44139239. The next prime is 44139253. The reversal of 44139241 is 14293144.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43507216 + 632025 = 6596^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 44139241 - 2¹ = 44139239 is a prime.

Together with 44139239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (44139041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22069620 + 22069621.

It is an arithmetic number, because the mean of its divisors is an integer number (22069621).

Almost surely, 2^44139241 is an apocalyptic number.

It is an amenable number.

44139241 is a deficient number, since it is larger than the sum of its proper divisors (1).

44139241 is an equidigital number, since it uses as much as digits as its factorization.

44139241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 44139241 is about 6643.7369755282. The cubic root of 44139241 is about 353.4068423262.

The spelling of 44139241 in words is "forty-four million, one hundred thirty-nine thousand, two hundred forty-one".