168302305 has 16 divisors (see below), whose sum is σ = 206475264. Its totient is φ = 131664960.

The previous prime is 168302297. The next prime is 168302327. The reversal of 168302305 is 503203861.

It is not a de Polignac number, because 168302305 - 2³ = 168302297 is a prime.

It is a Duffinian 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, 43219 + ... + 46951.

It is an arithmetic number, because the mean of its divisors is an integer number (12904704).

Almost surely, 2^168302305 is an apocalyptic number.

It is an amenable number.

168302305 is a deficient number, since it is larger than the sum of its proper divisors (38172959).

168302305 is a wasteful number, since it uses less digits than its factorization.

168302305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3936.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 168302305 is about 12973.1378239808. The cubic root of 168302305 is about 552.1156038508.

The spelling of 168302305 in words is "one hundred sixty-eight million, three hundred two thousand, three hundred five".