271144021 has 2 divisors, whose sum is σ = 271144022. Its totient is φ = 271144020.

The previous prime is 271144019. The next prime is 271144031. The reversal of 271144021 is 120441172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 270767025 + 376996 = 16455^2 + 614^2 .

It is a cyclic number.

It is not a de Polignac number, because 271144021 - 2¹ = 271144019 is a prime.

Together with 271144019, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 271143983 and 271144001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271144001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135572010 + 135572011.

It is an arithmetic number, because the mean of its divisors is an integer number (135572011).

Almost surely, 2^271144021 is an apocalyptic number.

It is an amenable number.

271144021 is a deficient number, since it is larger than the sum of its proper divisors (1).

271144021 is an equidigital number, since it uses as much as digits as its factorization.

271144021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 271144021 is about 16466.4513784847. The cubic root of 271144021 is about 647.2419794545.

Adding to 271144021 its reverse (120441172), we get a palindrome (391585193).

The spelling of 271144021 in words is "two hundred seventy-one million, one hundred forty-four thousand, twenty-one".