12616305 has 64 divisors (see below), whose sum is σ = 23708160. Its totient is φ = 5677056.

The previous prime is 12616273. The next prime is 12616319. The reversal of 12616305 is 50361621.

It is not a de Polignac number, because 12616305 - 2⁵ = 12616273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 130017 + ... + 130113.

It is an arithmetic number, because the mean of its divisors is an integer number (370440).

Almost surely, 2^12616305 is an apocalyptic number.

12616305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12616305 is a deficient number, since it is larger than the sum of its proper divisors (11091855).

12616305 is a wasteful number, since it uses less digits than its factorization.

12616305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 12616305 is about 3551.9438340154. The cubic root of 12616305 is about 232.7970074071.

Adding to 12616305 its reverse (50361621), we get a palindrome (62977926).

It can be divided in two parts, 12616 and 305, that added together give a palindrome (12921).

The spelling of 12616305 in words is "twelve million, six hundred sixteen thousand, three hundred five".