271738849 has 2 divisors, whose sum is σ = 271738850. Its totient is φ = 271738848.

The previous prime is 271738847. The next prime is 271738877. The reversal of 271738849 is 948837172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168350625 + 103388224 = 12975^2 + 10168^2 .

It is a cyclic number.

It is not a de Polignac number, because 271738849 - 2¹ = 271738847 is a prime.

Together with 271738847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (271738843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135869424 + 135869425.

It is an arithmetic number, because the mean of its divisors is an integer number (135869425).

Almost surely, 2^271738849 is an apocalyptic number.

It is an amenable number.

271738849 is a deficient number, since it is larger than the sum of its proper divisors (1).

271738849 is an equidigital number, since it uses as much as digits as its factorization.

271738849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 49.

The square root of 271738849 is about 16484.5032985529. The cubic root of 271738849 is about 647.7149340871.

The spelling of 271738849 in words is "two hundred seventy-one million, seven hundred thirty-eight thousand, eight hundred forty-nine".