12740317 has 4 divisors (see below), whose sum is σ = 13410880. Its totient is φ = 12069756.

The previous prime is 12740303. The next prime is 12740333. The reversal of 12740317 is 71304721.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 71304721 = 73 ⋅976777.

It is a cyclic number.

It is not a de Polignac number, because 12740317 - 2²³ = 4351709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12740291 and 12740300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12740347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335253 + ... + 335290.

It is an arithmetic number, because the mean of its divisors is an integer number (3352720).

Almost surely, 2^12740317 is an apocalyptic number.

It is an amenable number.

12740317 is a deficient number, since it is larger than the sum of its proper divisors (670563).

12740317 is an equidigital number, since it uses as much as digits as its factorization.

12740317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670562.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 12740317 is about 3569.3580655350. The cubic root of 12740317 is about 233.5572813629.

The spelling of 12740317 in words is "twelve million, seven hundred forty thousand, three hundred seventeen".