168999059 has 2 divisors, whose sum is σ = 168999060. Its totient is φ = 168999058.

The previous prime is 168999043. The next prime is 168999067. The reversal of 168999059 is 950999861.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 168999059 - 2⁴ = 168999043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168998995 and 168999013.

It is not a weakly prime, because it can be changed into another prime (168999359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84499529 + 84499530.

It is an arithmetic number, because the mean of its divisors is an integer number (84499530).

Almost surely, 2^168999059 is an apocalyptic number.

168999059 is a deficient number, since it is larger than the sum of its proper divisors (1).

168999059 is an equidigital number, since it uses as much as digits as its factorization.

168999059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1574640, while the sum is 56.

The square root of 168999059 is about 12999.9638076419. The cubic root of 168999059 is about 552.8764552167.

The spelling of 168999059 in words is "one hundred sixty-eight million, nine hundred ninety-nine thousand, fifty-nine".