44145129 has 16 divisors (see below), whose sum is σ = 68643200. Its totient is φ = 25225200.

The previous prime is 44145091. The next prime is 44145137. The reversal of 44145129 is 92154144.

44145129 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 44145129 - 2¹⁶ = 44079593 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44145096 and 44145105.

It is not an unprimeable number, because it can be changed into a prime (44145169) 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 15 ways as a sum of consecutive naturals, for example, 20422 + ... + 22479.

It is an arithmetic number, because the mean of its divisors is an integer number (4290200).

Almost surely, 2^44145129 is an apocalyptic number.

44145129 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

44145129 is a deficient number, since it is larger than the sum of its proper divisors (24498071).

44145129 is an equidigital number, since it uses as much as digits as its factorization.

44145129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42925 (or 42911 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 44145129 is about 6644.1800848562. The cubic root of 44145129 is about 353.4225559853.

The spelling of 44145129 in words is "forty-four million, one hundred forty-five thousand, one hundred twenty-nine".