44771139 has 24 divisors (see below), whose sum is σ = 75714912. Its totient is φ = 24958080.

The previous prime is 44771123. The next prime is 44771141. The reversal of 44771139 is 93117744.

44771139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 44771139 - 2⁴ = 44771123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (44772139) 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 in 23 ways as a sum of consecutive naturals, for example, 6084 + ... + 11249.

It is an arithmetic number, because the mean of its divisors is an integer number (3154788).

Almost surely, 2^44771139 is an apocalyptic number.

44771139 is a deficient number, since it is larger than the sum of its proper divisors (30943773).

44771139 is a wasteful number, since it uses less digits than its factorization.

44771139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17387 (or 17384 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 44771139 is about 6691.1238966260. The cubic root of 44771139 is about 355.0853170594.

The spelling of 44771139 in words is "forty-four million, seven hundred seventy-one thousand, one hundred thirty-nine".