2144035521 has 16 divisors (see below), whose sum is σ = 3177411520. Its totient is φ = 1428878880.

The previous prime is 2144035483. The next prime is 2144035549. The reversal of 2144035521 is 1255304412.

It is not a de Polignac number, because 2144035521 - 2¹⁹ = 2143511233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144035021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81126 + ... + 104256.

It is an arithmetic number, because the mean of its divisors is an integer number (198588220).

Almost surely, 2^2144035521 is an apocalyptic number.

It is an amenable number.

2144035521 is a deficient number, since it is larger than the sum of its proper divisors (1033375999).

2144035521 is a wasteful number, since it uses less digits than its factorization.

2144035521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26573 (or 26567 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 2144035521 is about 46303.7311779515. The cubic root of 2144035521 is about 1289.4682665194.

Adding to 2144035521 its reverse (1255304412), we get a palindrome (3399339933).

The spelling of 2144035521 in words is "two billion, one hundred forty-four million, thirty-five thousand, five hundred twenty-one".