271318961 has 2 divisors, whose sum is σ = 271318962. Its totient is φ = 271318960.

The previous prime is 271318951. The next prime is 271318969. The reversal of 271318961 is 169813172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 248661361 + 22657600 = 15769^2 + 4760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-271318961 is a prime.

It is a super-2 number, since 2×271318961² = 147227957196239042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (271318969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135659480 + 135659481.

It is an arithmetic number, because the mean of its divisors is an integer number (135659481).

Almost surely, 2^271318961 is an apocalyptic number.

It is an amenable number.

271318961 is a deficient number, since it is larger than the sum of its proper divisors (1).

271318961 is an equidigital number, since it uses as much as digits as its factorization.

271318961 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 38.

The square root of 271318961 is about 16471.7625347138. The cubic root of 271318961 is about 647.3811480149.

The spelling of 271318961 in words is "two hundred seventy-one million, three hundred eighteen thousand, nine hundred sixty-one".