168358741 has 2 divisors, whose sum is σ = 168358742. Its totient is φ = 168358740.

The previous prime is 168358721. The next prime is 168358759. The reversal of 168358741 is 147853861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128731716 + 39627025 = 11346^2 + 6295^2 .

It is a cyclic number.

It is not a de Polignac number, because 168358741 - 2¹³ = 168350549 is a prime.

It is a super-2 number, since 2×168358741² = 56689331342210162, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168358721) 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, 84179370 + 84179371.

It is an arithmetic number, because the mean of its divisors is an integer number (84179371).

Almost surely, 2^168358741 is an apocalyptic number.

It is an amenable number.

168358741 is a deficient number, since it is larger than the sum of its proper divisors (1).

168358741 is an equidigital number, since it uses as much as digits as its factorization.

168358741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 43.

The square root of 168358741 is about 12975.3127515293. The cubic root of 168358741 is about 552.1773097081.

The spelling of 168358741 in words is "one hundred sixty-eight million, three hundred fifty-eight thousand, seven hundred forty-one".