163302989 has 2 divisors, whose sum is σ = 163302990. Its totient is φ = 163302988.

The previous prime is 163302977. The next prime is 163303061. The reversal of 163302989 is 989203361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133217764 + 30085225 = 11542^2 + 5485^2 .

It is a cyclic number.

It is not a de Polignac number, because 163302989 - 2¹² = 163298893 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 (163301989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81651494 + 81651495.

It is an arithmetic number, because the mean of its divisors is an integer number (81651495).

Almost surely, 2^163302989 is an apocalyptic number.

It is an amenable number.

163302989 is a deficient number, since it is larger than the sum of its proper divisors (1).

163302989 is an equidigital number, since it uses as much as digits as its factorization.

163302989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 163302989 is about 12779.0057907491. The cubic root of 163302989 is about 546.5938127101.

The spelling of 163302989 in words is "one hundred sixty-three million, three hundred two thousand, nine hundred eighty-nine".