163117365 has 16 divisors (see below), whose sum is σ = 261744000. Its totient is φ = 86743872.

The previous prime is 163117343. The next prime is 163117369. The reversal of 163117365 is 563711361.

It is a happy number.

It is not a de Polignac number, because 163117365 - 2¹⁰ = 163116341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163117369) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10345 + ... + 20814.

It is an arithmetic number, because the mean of its divisors is an integer number (16359000).

Almost surely, 2^163117365 is an apocalyptic number.

163117365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

163117365 is a deficient number, since it is larger than the sum of its proper divisors (98626635).

163117365 is a wasteful number, since it uses less digits than its factorization.

163117365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31516.

The product of its digits is 11340, while the sum is 33.

The square root of 163117365 is about 12771.7408758556. The cubic root of 163117365 is about 546.3866325929.

The spelling of 163117365 in words is "one hundred sixty-three million, one hundred seventeen thousand, three hundred sixty-five".