297005081 has 2 divisors, whose sum is σ = 297005082. Its totient is φ = 297005080.

The previous prime is 297005041. The next prime is 297005083. The reversal of 297005081 is 180500792.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255840025 + 41165056 = 15995^2 + 6416^2 .

It is a cyclic number.

It is not a de Polignac number, because 297005081 - 2¹⁴ = 296988697 is a prime.

It is a super-2 number, since 2×297005081² = 176424036279633122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 297005083, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (297005083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148502540 + 148502541.

It is an arithmetic number, because the mean of its divisors is an integer number (148502541).

Almost surely, 2^297005081 is an apocalyptic number.

It is an amenable number.

297005081 is a deficient number, since it is larger than the sum of its proper divisors (1).

297005081 is an equidigital number, since it uses as much as digits as its factorization.

297005081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 297005081 is about 17233.8353537453. The cubic root of 297005081 is about 667.1978318773.

The spelling of 297005081 in words is "two hundred ninety-seven million, five thousand, eighty-one".