168983149 has 2 divisors, whose sum is σ = 168983150. Its totient is φ = 168983148.

The previous prime is 168983141. The next prime is 168983159. The reversal of 168983149 is 941389861.

168983149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168740100 + 243049 = 12990^2 + 493^2 .

It is an emirp because it is prime and its reverse (941389861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 168983149 - 2³ = 168983141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168983141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84491574 + 84491575.

It is an arithmetic number, because the mean of its divisors is an integer number (84491575).

Almost surely, 2^168983149 is an apocalyptic number.

It is an amenable number.

168983149 is a deficient number, since it is larger than the sum of its proper divisors (1).

168983149 is an equidigital number, since it uses as much as digits as its factorization.

168983149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 49.

The square root of 168983149 is about 12999.3518684587. The cubic root of 168983149 is about 552.8591049416.

The spelling of 168983149 in words is "one hundred sixty-eight million, nine hundred eighty-three thousand, one hundred forty-nine".