4445012513 has 4 divisors (see below), whose sum is σ = 4678960560. Its totient is φ = 4211064468.

The previous prime is 4445012503. The next prime is 4445012521. The reversal of 4445012513 is 3152105444.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4445012513 - 2³⁰ = 3371270689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4445012503) 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 in 3 ways as a sum of consecutive naturals, for example, 116973995 + ... + 116974032.

It is an arithmetic number, because the mean of its divisors is an integer number (1169740140).

Almost surely, 2^4445012513 is an apocalyptic number.

It is an amenable number.

4445012513 is a deficient number, since it is larger than the sum of its proper divisors (233948047).

4445012513 is a wasteful number, since it uses less digits than its factorization.

4445012513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233948046.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 4445012513 is about 66670.9270447022. The cubic root of 4445012513 is about 1644.2114287793.

Adding to 4445012513 its reverse (3152105444), we get a palindrome (7597117957).

The spelling of 4445012513 in words is "four billion, four hundred forty-five million, twelve thousand, five hundred thirteen".