4442146145 has 16 divisors (see below), whose sum is σ = 5397157008. Its totient is φ = 3509510400.

The previous prime is 4442146123. The next prime is 4442146153. The reversal of 4442146145 is 5416412444.

4442146145 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1041740176 + 3400405969 = 32276^2 + 58313^2 .

It is not a de Polignac number, because 4442146145 - 2¹⁰ = 4442145121 is a prime.

It is a super-2 number, since 2×4442146145² = 39465324747076722050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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, 189407 + ... + 211563.

It is an arithmetic number, because the mean of its divisors is an integer number (337322313).

Almost surely, 2^4442146145 is an apocalyptic number.

It is an amenable number.

4442146145 is a deficient number, since it is larger than the sum of its proper divisors (955010863).

4442146145 is a wasteful number, since it uses less digits than its factorization.

4442146145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22660.

The product of its digits is 61440, while the sum is 35.

The square root of 4442146145 is about 66649.4271918371. The cubic root of 4442146145 is about 1643.8579293298.

Adding to 4442146145 its reverse (5416412444), we get a palindrome (9858558589).

The spelling of 4442146145 in words is "four billion, four hundred forty-two million, one hundred forty-six thousand, one hundred forty-five".