2144504521 has 8 divisors (see below), whose sum is σ = 2355520320. Its totient is φ = 1943303472.

The previous prime is 2144504513. The next prime is 2144504561. The reversal of 2144504521 is 1254054412.

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

It is a cyclic number.

It is not a de Polignac number, because 2144504521 - 2³ = 2144504513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2144504521.

It is not an unprimeable number, because it can be changed into a prime (2144504561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2453230 + ... + 2454103.

It is an arithmetic number, because the mean of its divisors is an integer number (294440040).

Almost surely, 2^2144504521 is an apocalyptic number.

It is an amenable number.

2144504521 is a deficient number, since it is larger than the sum of its proper divisors (211015799).

2144504521 is a wasteful number, since it uses less digits than its factorization.

2144504521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907375.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 2144504521 is about 46308.7952877205. The cubic root of 2144504521 is about 1289.5622818346.

Adding to 2144504521 its reverse (1254054412), we get a palindrome (3398558933).

The spelling of 2144504521 in words is "two billion, one hundred forty-four million, five hundred four thousand, five hundred twenty-one".