163109713 has 8 divisors (see below), whose sum is σ = 185989608. Its totient is φ = 141705984.

The previous prime is 163109663. The next prime is 163109719. The reversal of 163109713 is 317901361.

It can be written as a sum of positive squares in 4 ways, for example, as 7059649 + 156050064 = 2657^2 + 12492^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163109713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163109719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368806 + ... + 369247.

It is an arithmetic number, because the mean of its divisors is an integer number (23248701).

Almost surely, 2^163109713 is an apocalyptic number.

163109713 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

163109713 is a deficient number, since it is larger than the sum of its proper divisors (22879895).

163109713 is a wasteful number, since it uses less digits than its factorization.

163109713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738083.

The product of its (nonzero) digits is 3402, while the sum is 31.

The square root of 163109713 is about 12771.4413047236. The cubic root of 163109713 is about 546.3780886100.

The spelling of 163109713 in words is "one hundred sixty-three million, one hundred nine thousand, seven hundred thirteen".