163005149 has 2 divisors, whose sum is σ = 163005150. Its totient is φ = 163005148.

The previous prime is 163005113. The next prime is 163005211. The reversal of 163005149 is 941500361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146047225 + 16957924 = 12085^2 + 4118^2 .

It is an emirp because it is prime and its reverse (941500361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163005149 - 2²⁰ = 161956573 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 (163005049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81502574 + 81502575.

It is an arithmetic number, because the mean of its divisors is an integer number (81502575).

Almost surely, 2^163005149 is an apocalyptic number.

It is an amenable number.

163005149 is a deficient number, since it is larger than the sum of its proper divisors (1).

163005149 is an equidigital number, since it uses as much as digits as its factorization.

163005149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 163005149 is about 12767.3469836141. The cubic root of 163005149 is about 546.2613089487.

The spelling of 163005149 in words is "one hundred sixty-three million, five thousand, one hundred forty-nine".