163244609 has 6 divisors (see below), whose sum is σ = 179434290. Its totient is φ = 148404080.

The previous prime is 163244603. The next prime is 163244617. The reversal of 163244609 is 906442361.

163244609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 146410000 + 16834609 = 12100^2 + 4103^2 .

It is a de Polignac number, because none of the positive numbers 2^k-163244609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163244603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 674444 + ... + 674685.

It is an arithmetic number, because the mean of its divisors is an integer number (29905715).

Almost surely, 2^163244609 is an apocalyptic number.

It is an amenable number.

163244609 is a deficient number, since it is larger than the sum of its proper divisors (16189681).

163244609 is a wasteful number, since it uses less digits than its factorization.

163244609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349151 (or 1349140 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 163244609 is about 12776.7213713065. The cubic root of 163244609 is about 546.5286700974.

The spelling of 163244609 in words is "one hundred sixty-three million, two hundred forty-four thousand, six hundred nine".