168730215 has 16 divisors (see below), whose sum is σ = 270442368. Its totient is φ = 89831456.

The previous prime is 168730201. The next prime is 168730223. The reversal of 168730215 is 512037861.

It is a cyclic number.

It is not a de Polignac number, because 168730215 - 2⁵ = 168730183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 777 + ... + 18386.

It is an arithmetic number, because the mean of its divisors is an integer number (16902648).

Almost surely, 2^168730215 is an apocalyptic number.

168730215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

168730215 is a deficient number, since it is larger than the sum of its proper divisors (101712153).

168730215 is a wasteful number, since it uses less digits than its factorization.

168730215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19758.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 168730215 is about 12989.6195094391. The cubic root of 168730215 is about 552.5831273407.

The spelling of 168730215 in words is "one hundred sixty-eight million, seven hundred thirty thousand, two hundred fifteen".