12917345 has 8 divisors (see below), whose sum is σ = 17715264. Its totient is φ = 8857584.

The previous prime is 12917309. The next prime is 12917353. The reversal of 12917345 is 54371921.

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 12917345 - 2⁸ = 12917089 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184499 + ... + 184568.

It is an arithmetic number, because the mean of its divisors is an integer number (2214408).

Almost surely, 2^12917345 is an apocalyptic number.

It is an amenable number.

12917345 is a deficient number, since it is larger than the sum of its proper divisors (4797919).

12917345 is an equidigital number, since it uses as much as digits as its factorization.

12917345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369079.

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

The square root of 12917345 is about 3594.0708117676. The cubic root of 12917345 is about 234.6340766535.

The spelling of 12917345 in words is "twelve million, nine hundred seventeen thousand, three hundred forty-five".