117805167 has 12 divisors (see below), whose sum is σ = 173374344. Its totient is φ = 77054640.

The previous prime is 117805147. The next prime is 117805169. The reversal of 117805167 is 761508711.

It is a happy number.

It is not a de Polignac number, because 117805167 - 2¹² = 117801071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117805169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123009 + ... + 123962.

It is an arithmetic number, because the mean of its divisors is an integer number (14447862).

Almost surely, 2^117805167 is an apocalyptic number.

117805167 is a deficient number, since it is larger than the sum of its proper divisors (55569177).

117805167 is a wasteful number, since it uses less digits than its factorization.

117805167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247030 (or 247027 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 36.

The square root of 117805167 is about 10853.8088706223. The cubic root of 117805167 is about 490.2167124147.

The spelling of 117805167 in words is "one hundred seventeen million, eight hundred five thousand, one hundred sixty-seven".