163709117 has 24 divisors (see below), whose sum is σ = 195900768. Its totient is φ = 135595200.

The previous prime is 163709113. The next prime is 163709153. The reversal of 163709117 is 711907361.

It is not a de Polignac number, because 163709117 - 2² = 163709113 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 (163709113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153767 + ... + 154827.

It is an arithmetic number, because the mean of its divisors is an integer number (8162532).

Almost surely, 2^163709117 is an apocalyptic number.

It is an amenable number.

163709117 is a deficient number, since it is larger than the sum of its proper divisors (32191651).

163709117 is a wasteful number, since it uses less digits than its factorization.

163709117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1181 (or 1168 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 35.

The square root of 163709117 is about 12794.8863613555. The cubic root of 163709117 is about 547.0465565797.

The spelling of 163709117 in words is "one hundred sixty-three million, seven hundred nine thousand, one hundred seventeen".