12315049 has 4 divisors (see below), whose sum is σ = 12322960. Its totient is φ = 12307140.

The previous prime is 12315013. The next prime is 12315077. The reversal of 12315049 is 94051321.

12315049 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, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12315049 - 2⁹ = 12314537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12315349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759 + ... + 5020.

It is an arithmetic number, because the mean of its divisors is an integer number (3080740).

Almost surely, 2^12315049 is an apocalyptic number.

It is an amenable number.

12315049 is a deficient number, since it is larger than the sum of its proper divisors (7911).

12315049 is an equidigital number, since it uses as much as digits as its factorization.

12315049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7910.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 12315049 is about 3509.2804105685. The cubic root of 12315049 is about 230.9291275119.

The spelling of 12315049 in words is "twelve million, three hundred fifteen thousand, forty-nine".