2054144221 has 8 divisors (see below), whose sum is σ = 2175998904. Its totient is φ = 1932403200.

The previous prime is 2054144219. The next prime is 2054144233. The reversal of 2054144221 is 1224414502.

It can be written as a sum of positive squares in 4 ways, for example, as 639331225 + 1414812996 = 25285^2 + 37614^2 .

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 2054144221 - 2¹ = 2054144219 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 (2054144251) 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, 10321 + ... + 64921.

It is an arithmetic number, because the mean of its divisors is an integer number (271999863).

Almost surely, 2^2054144221 is an apocalyptic number.

It is an amenable number.

2054144221 is a deficient number, since it is larger than the sum of its proper divisors (121854683).

2054144221 is a wasteful number, since it uses less digits than its factorization.

2054144221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56831.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 2054144221 is about 45322.6678495430. The cubic root of 2054144221 is about 1271.1895401956.

Adding to 2054144221 its reverse (1224414502), we get a palindrome (3278558723).

The spelling of 2054144221 in words is "two billion, fifty-four million, one hundred forty-four thousand, two hundred twenty-one".