168682117 has 4 divisors (see below), whose sum is σ = 168716736. Its totient is φ = 168647500.

The previous prime is 168682103. The next prime is 168682147. The reversal of 168682117 is 711286861.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168682117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168682117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168682147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8509 + ... + 20242.

It is an arithmetic number, because the mean of its divisors is an integer number (42179184).

Almost surely, 2^168682117 is an apocalyptic number.

It is an amenable number.

168682117 is a deficient number, since it is larger than the sum of its proper divisors (34619).

168682117 is an equidigital number, since it uses as much as digits as its factorization.

168682117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34618.

The product of its digits is 32256, while the sum is 40.

The square root of 168682117 is about 12987.7679760612. The cubic root of 168682117 is about 552.5306161586.

The spelling of 168682117 in words is "one hundred sixty-eight million, six hundred eighty-two thousand, one hundred seventeen".