2144021137 has 16 divisors (see below), whose sum is σ = 2237248512. Its totient is φ = 2053005760.

The previous prime is 2144021083. The next prime is 2144021179. The reversal of 2144021137 is 7311204412.

It is a cyclic number.

It is not a de Polignac number, because 2144021137 - 2¹¹ = 2144019089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2144021437) 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, 1072623 + ... + 1074619.

It is an arithmetic number, because the mean of its divisors is an integer number (139828032).

Almost surely, 2^2144021137 is an apocalyptic number.

It is an amenable number.

2144021137 is a deficient number, since it is larger than the sum of its proper divisors (93227375).

2144021137 is a wasteful number, since it uses less digits than its factorization.

2144021137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2144021137 is about 46303.5758554348. The cubic root of 2144021137 is about 1289.4653828991.

Adding to 2144021137 its reverse (7311204412), we get a palindrome (9455225549).

The spelling of 2144021137 in words is "two billion, one hundred forty-four million, twenty-one thousand, one hundred thirty-seven".