163147009 has 2 divisors, whose sum is σ = 163147010. Its totient is φ = 163147008.

The previous prime is 163147003. The next prime is 163147037. The reversal of 163147009 is 900741361.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153066384 + 10080625 = 12372^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 163147009 - 2⁷ = 163146881 is a prime.

It is not a weakly prime, because it can be changed into another prime (163147003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81573504 + 81573505.

It is an arithmetic number, because the mean of its divisors is an integer number (81573505).

Almost surely, 2^163147009 is an apocalyptic number.

It is an amenable number.

163147009 is a deficient number, since it is larger than the sum of its proper divisors (1).

163147009 is an equidigital number, since it uses as much as digits as its factorization.

163147009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 163147009 is about 12772.9013540386. The cubic root of 163147009 is about 546.4197296296.

The spelling of 163147009 in words is "one hundred sixty-three million, one hundred forty-seven thousand, nine".