168697141 has 2 divisors, whose sum is σ = 168697142. Its totient is φ = 168697140.

The previous prime is 168697079. The next prime is 168697183. The reversal of 168697141 is 141796861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93528241 + 75168900 = 9671^2 + 8670^2 .

It is a cyclic number.

It is not a de Polignac number, because 168697141 - 2⁹ = 168696629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168697741) 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, 84348570 + 84348571.

It is an arithmetic number, because the mean of its divisors is an integer number (84348571).

Almost surely, 2^168697141 is an apocalyptic number.

It is an amenable number.

168697141 is a deficient number, since it is larger than the sum of its proper divisors (1).

168697141 is an equidigital number, since it uses as much as digits as its factorization.

168697141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 43.

The square root of 168697141 is about 12988.3463535586. The cubic root of 168697141 is about 552.5470197420.

The spelling of 168697141 in words is "one hundred sixty-eight million, six hundred ninety-seven thousand, one hundred forty-one".