12108305 has 8 divisors (see below), whose sum is σ = 15850944. Its totient is φ = 8806000.

The previous prime is 12108277. The next prime is 12108319. The reversal of 12108305 is 50380121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12108305 - 2¹⁶ = 12042769 is a prime.

It is a super-2 number, since 2×12108305² = 293222099946050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110021 + ... + 110130.

It is an arithmetic number, because the mean of its divisors is an integer number (1981368).

Almost surely, 2^12108305 is an apocalyptic number.

It is an amenable number.

12108305 is a deficient number, since it is larger than the sum of its proper divisors (3742639).

12108305 is a wasteful number, since it uses less digits than its factorization.

12108305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220167.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 12108305 is about 3479.6989812339. The cubic root of 12108305 is about 229.6295548987.

Adding to 12108305 its reverse (50380121), we get a palindrome (62488426).

The spelling of 12108305 in words is "twelve million, one hundred eight thousand, three hundred five".