671275361 has 2 divisors, whose sum is σ = 671275362. Its totient is φ = 671275360.

The previous prime is 671275331. The next prime is 671275387. The reversal of 671275361 is 163572176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 555497761 + 115777600 = 23569^2 + 10760^2 .

It is a cyclic number.

It is not a de Polignac number, because 671275361 - 2¹⁰ = 671274337 is a prime.

It is a super-2 number, since 2×671275361² = 901221220571360642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (671275331) 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, 335637680 + 335637681.

It is an arithmetic number, because the mean of its divisors is an integer number (335637681).

Almost surely, 2^671275361 is an apocalyptic number.

It is an amenable number.

671275361 is a deficient number, since it is larger than the sum of its proper divisors (1).

671275361 is an equidigital number, since it uses as much as digits as its factorization.

671275361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 38.

The square root of 671275361 is about 25908.9822455457. The cubic root of 671275361 is about 875.5888764126.

The spelling of 671275361 in words is "six hundred seventy-one million, two hundred seventy-five thousand, three hundred sixty-one".