168363149 has 2 divisors, whose sum is σ = 168363150. Its totient is φ = 168363148.

The previous prime is 168363133. The next prime is 168363163. The reversal of 168363149 is 941363861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95687524 + 72675625 = 9782^2 + 8525^2 .

It is an emirp because it is prime and its reverse (941363861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168363149 - 2⁴ = 168363133 is a prime.

It is a super-2 number, since 2×168363149² = 56692299882392402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168363119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84181574 + 84181575.

It is an arithmetic number, because the mean of its divisors is an integer number (84181575).

Almost surely, 2^168363149 is an apocalyptic number.

It is an amenable number.

168363149 is a deficient number, since it is larger than the sum of its proper divisors (1).

168363149 is an equidigital number, since it uses as much as digits as its factorization.

168363149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 41.

The square root of 168363149 is about 12975.4826114484. The cubic root of 168363149 is about 552.1821287359.

The spelling of 168363149 in words is "one hundred sixty-eight million, three hundred sixty-three thousand, one hundred forty-nine".