163103609 has 4 divisors (see below), whose sum is σ = 163217316. Its totient is φ = 162989904.

The previous prime is 163103599. The next prime is 163103621. The reversal of 163103609 is 906301361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100060009 + 63043600 = 10003^2 + 7940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163103609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163103209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54674 + ... + 57579.

It is an arithmetic number, because the mean of its divisors is an integer number (40804329).

Almost surely, 2^163103609 is an apocalyptic number.

It is an amenable number.

163103609 is a deficient number, since it is larger than the sum of its proper divisors (113707).

163103609 is a wasteful number, since it uses less digits than its factorization.

163103609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113706.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 163103609 is about 12771.2023318089. The cubic root of 163103609 is about 546.3712728838.

The spelling of 163103609 in words is "one hundred sixty-three million, one hundred three thousand, six hundred nine".