2144134421 has 8 divisors (see below), whose sum is σ = 2518983264. Its totient is φ = 1799273520.

The previous prime is 2144134411. The next prime is 2144134471. The reversal of 2144134421 is 1244314412.

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

It is not a de Polignac number, because 2144134421 - 2³⁰ = 1070392597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144134411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7496831 + ... + 7497116.

It is an arithmetic number, because the mean of its divisors is an integer number (314872908).

Almost surely, 2^2144134421 is an apocalyptic number.

It is an amenable number.

2144134421 is a deficient number, since it is larger than the sum of its proper divisors (374848843).

2144134421 is a wasteful number, since it uses less digits than its factorization.

2144134421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14993971.

The product of its digits is 3072, while the sum is 26.

The square root of 2144134421 is about 46304.7991141307. The cubic root of 2144134421 is about 1289.4880930644.

Adding to 2144134421 its reverse (1244314412), we get a palindrome (3388448833).

Subtracting from 2144134421 its reverse (1244314412), we obtain a square (899820009 = 29997²).

The spelling of 2144134421 in words is "two billion, one hundred forty-four million, one hundred thirty-four thousand, four hundred twenty-one".