108865305 has 12 divisors (see below), whose sum is σ = 188699940. Its totient is φ = 58061472.

The previous prime is 108865303. The next prime is 108865313. The reversal of 108865305 is 503568801.

It can be written as a sum of positive squares in 2 ways, for example, as 63059481 + 45805824 = 7941^2 + 6768^2 .

It is not a de Polignac number, because 108865305 - 2¹ = 108865303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108865305.

It is not an unprimeable number, because it can be changed into a prime (108865303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1209570 + ... + 1209659.

It is an arithmetic number, because the mean of its divisors is an integer number (15724995).

Almost surely, 2^108865305 is an apocalyptic number.

108865305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

108865305 is a deficient number, since it is larger than the sum of its proper divisors (79834635).

108865305 is a wasteful number, since it uses less digits than its factorization.

108865305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419240 (or 2419237 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 108865305 is about 10433.8537942603. The cubic root of 108865305 is about 477.4887728873.

The spelling of 108865305 in words is "one hundred eight million, eight hundred sixty-five thousand, three hundred five".