12580305 has 8 divisors (see below), whose sum is σ = 20128512. Its totient is φ = 6709488.

The previous prime is 12580303. The next prime is 12580313. The reversal of 12580305 is 50308521.

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

It is not a de Polignac number, because 12580305 - 2¹ = 12580303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12580301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419329 + ... + 419358.

It is an arithmetic number, because the mean of its divisors is an integer number (2516064).

Almost surely, 2^12580305 is an apocalyptic number.

12580305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12580305 is a deficient number, since it is larger than the sum of its proper divisors (7548207).

12580305 is an equidigital number, since it uses as much as digits as its factorization.

12580305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838695.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 12580305 is about 3546.8725660785. The cubic root of 12580305 is about 232.5753715630.

Adding to 12580305 its reverse (50308521), we get a palindrome (62888826).

The spelling of 12580305 in words is "twelve million, five hundred eighty thousand, three hundred five".