168408043 has 2 divisors, whose sum is σ = 168408044. Its totient is φ = 168408042.

The previous prime is 168408029. The next prime is 168408101. The reversal of 168408043 is 340804861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 168408043 - 2¹³ = 168399851 is a prime.

It is a super-2 number, since 2×168408043² = 56722537894179698, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (168408143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84204021 + 84204022.

It is an arithmetic number, because the mean of its divisors is an integer number (84204022).

Almost surely, 2^168408043 is an apocalyptic number.

168408043 is a deficient number, since it is larger than the sum of its proper divisors (1).

168408043 is an equidigital number, since it uses as much as digits as its factorization.

168408043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 168408043 is about 12977.2124510621. The cubic root of 168408043 is about 552.2312041255.

The spelling of 168408043 in words is "one hundred sixty-eight million, four hundred eight thousand, forty-three".