168848261 has 2 divisors, whose sum is σ = 168848262. Its totient is φ = 168848260.

The previous prime is 168848249. The next prime is 168848263. The reversal of 168848261 is 162848861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168844036 + 4225 = 12994^2 + 65^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168848261 is a prime.

It is a Sophie Germain prime.

Together with 168848263, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168848263) 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, 84424130 + 84424131.

It is an arithmetic number, because the mean of its divisors is an integer number (84424131).

Almost surely, 2^168848261 is an apocalyptic number.

It is an amenable number.

168848261 is a deficient number, since it is larger than the sum of its proper divisors (1).

168848261 is an equidigital number, since it uses as much as digits as its factorization.

168848261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 147456, while the sum is 44.

The square root of 168848261 is about 12994.1625740176. The cubic root of 168848261 is about 552.7119622419.

The spelling of 168848261 in words is "one hundred sixty-eight million, eight hundred forty-eight thousand, two hundred sixty-one".