4445020145 has 8 divisors (see below), whose sum is σ = 5334520680. Its totient is φ = 3555685120.

The previous prime is 4445020133. The next prime is 4445020169. The reversal of 4445020145 is 5410205444.

It can be written as a sum of positive squares in 4 ways, for example, as 2930944 + 4442089201 = 1712^2 + 66649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4445020145 - 2¹⁶ = 4444954609 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28415 + ... + 98475.

It is an arithmetic number, because the mean of its divisors is an integer number (666815085).

Almost surely, 2^4445020145 is an apocalyptic number.

It is an amenable number.

4445020145 is a deficient number, since it is larger than the sum of its proper divisors (889500535).

4445020145 is a wasteful number, since it uses less digits than its factorization.

4445020145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82755.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 4445020145 is about 66670.9842810199. The cubic root of 4445020145 is about 1644.2123698051.

Adding to 4445020145 its reverse (5410205444), we get a palindrome (9855225589).

The spelling of 4445020145 in words is "four billion, four hundred forty-five million, twenty thousand, one hundred forty-five".