163387109 has 8 divisors (see below), whose sum is σ = 164652480. Its totient is φ = 162126976.

The previous prime is 163387033. The next prime is 163387111. The reversal of 163387109 is 901783361.

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

It is a cyclic number.

It is not a de Polignac number, because 163387109 - 2²⁴ = 146609893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163387129) 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, 79112 + ... + 81150.

It is an arithmetic number, because the mean of its divisors is an integer number (20581560).

Almost surely, 2^163387109 is an apocalyptic number.

It is an amenable number.

163387109 is a deficient number, since it is larger than the sum of its proper divisors (1265371).

163387109 is a wasteful number, since it uses less digits than its factorization.

163387109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 163387109 is about 12782.2967028621. The cubic root of 163387109 is about 546.6876496920.

The spelling of 163387109 in words is "one hundred sixty-three million, three hundred eighty-seven thousand, one hundred nine".