12315947 has 8 divisors (see below), whose sum is σ = 14098656. Its totient is φ = 10539072.

The previous prime is 12315943. The next prime is 12315967. The reversal of 12315947 is 74951321.

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

It is a cyclic number.

It is not a de Polignac number, because 12315947 - 2² = 12315943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12315943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4973 + ... + 7025.

It is an arithmetic number, because the mean of its divisors is an integer number (1762332).

Almost surely, 2^12315947 is an apocalyptic number.

12315947 is a deficient number, since it is larger than the sum of its proper divisors (1782709).

12315947 is an equidigital number, since it uses as much as digits as its factorization.

12315947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2917.

The product of its digits is 7560, while the sum is 32.

The square root of 12315947 is about 3509.4083546946. The cubic root of 12315947 is about 230.9347404092.

The spelling of 12315947 in words is "twelve million, three hundred fifteen thousand, nine hundred forty-seven".