2144131055405 has 4 divisors (see below), whose sum is σ = 2572957266492. Its totient is φ = 1715304844320.

The previous prime is 2144131055399. The next prime is 2144131055459. The reversal of 2144131055405 is 5045501314412.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1029360401476 + 1114770653929 = 1014574^2 + 1055827^2 .

It is not a de Polignac number, because 2144131055405 - 2¹⁰ = 2144131054381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214413105536 + ... + 214413105545.

It is an arithmetic number, because the mean of its divisors is an integer number (643239316623).

Almost surely, 2^{2144131055405} is an apocalyptic number.

It is an amenable number.

2144131055405 is a deficient number, since it is larger than the sum of its proper divisors (428826211087).

2144131055405 is an equidigital number, since it uses as much as digits as its factorization.

2144131055405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428826211086.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 2144131055405 its reverse (5045501314412), we get a palindrome (7189632369817).

The spelling of 2144131055405 in words is "two trillion, one hundred forty-four billion, one hundred thirty-one million, fifty-five thousand, four hundred five".