271720543 has 2 divisors, whose sum is σ = 271720544. Its totient is φ = 271720542.

The previous prime is 271720531. The next prime is 271720601. The reversal of 271720543 is 345027172.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 271720543 - 2¹⁷ = 271589471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271720513) 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, 135860271 + 135860272.

It is an arithmetic number, because the mean of its divisors is an integer number (135860272).

Almost surely, 2^271720543 is an apocalyptic number.

271720543 is a deficient number, since it is larger than the sum of its proper divisors (1).

271720543 is an equidigital number, since it uses as much as digits as its factorization.

271720543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 271720543 is about 16483.9480404423. The cubic root of 271720543 is about 647.7003890734.

The spelling of 271720543 in words is "two hundred seventy-one million, seven hundred twenty thousand, five hundred forty-three".