271665941 has 2 divisors, whose sum is σ = 271665942. Its totient is φ = 271665940.

The previous prime is 271665929. The next prime is 271665943. The reversal of 271665941 is 149566172.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271293841 + 372100 = 16471^2 + 610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-271665941 is a prime.

Together with 271665943, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (271665943) 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, 135832970 + 135832971.

It is an arithmetic number, because the mean of its divisors is an integer number (135832971).

Almost surely, 2^271665941 is an apocalyptic number.

It is an amenable number.

271665941 is a deficient number, since it is larger than the sum of its proper divisors (1).

271665941 is an equidigital number, since it uses as much as digits as its factorization.

271665941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 271665941 is about 16482.2917399250. The cubic root of 271665941 is about 647.6570012291.

The spelling of 271665941 in words is "two hundred seventy-one million, six hundred sixty-five thousand, nine hundred forty-one".