12915307 has 4 divisors (see below), whose sum is σ = 13595080. Its totient is φ = 12235536.

The previous prime is 12915283. The next prime is 12915311. The reversal of 12915307 is 70351921.

12915307 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12915307 - 2¹⁵ = 12882539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12915317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 339858 + ... + 339895.

It is an arithmetic number, because the mean of its divisors is an integer number (3398770).

Almost surely, 2^12915307 is an apocalyptic number.

12915307 is a deficient number, since it is larger than the sum of its proper divisors (679773).

12915307 is an equidigital number, since it uses as much as digits as its factorization.

12915307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679772.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 12915307 is about 3593.7872780675. The cubic root of 12915307 is about 234.6217364139.

The spelling of 12915307 in words is "twelve million, nine hundred fifteen thousand, three hundred seven".