298182161 has 2 divisors, whose sum is σ = 298182162. Its totient is φ = 298182160.

The previous prime is 298182139. The next prime is 298182163. The reversal of 298182161 is 161281892.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 283282561 + 14899600 = 16831^2 + 3860^2 .

It is a cyclic number.

It is not a de Polignac number, because 298182161 - 2¹⁸ = 297920017 is a prime.

It is a super-2 number, since 2×298182161² = 177825202277259842, which contains 22 as substring.

Together with 298182163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (298182163) 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, 149091080 + 149091081.

It is an arithmetic number, because the mean of its divisors is an integer number (149091081).

Almost surely, 2^298182161 is an apocalyptic number.

It is an amenable number.

298182161 is a deficient number, since it is larger than the sum of its proper divisors (1).

298182161 is an equidigital number, since it uses as much as digits as its factorization.

298182161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 38.

The square root of 298182161 is about 17267.9518472806. The cubic root of 298182161 is about 668.0780749756.

The spelling of 298182161 in words is "two hundred ninety-eight million, one hundred eighty-two thousand, one hundred sixty-one".