12995317 has 4 divisors (see below), whose sum is σ = 13005036. Its totient is φ = 12985600.

The previous prime is 12995309. The next prime is 12995321. The reversal of 12995317 is 71359921.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 71359921 = 421 ⋅169501.

It can be written as a sum of positive squares in 2 ways, for example, as 12574116 + 421201 = 3546^2 + 649^2 .

It is a cyclic number.

It is not a de Polignac number, because 12995317 - 2³ = 12995309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12995347) 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, 2458 + ... + 5659.

It is an arithmetic number, because the mean of its divisors is an integer number (3251259).

Almost surely, 2^12995317 is an apocalyptic number.

It is an amenable number.

12995317 is a deficient number, since it is larger than the sum of its proper divisors (9719).

12995317 is an equidigital number, since it uses as much as digits as its factorization.

12995317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9718.

The product of its digits is 17010, while the sum is 37.

The square root of 12995317 is about 3604.9018017139. The cubic root of 12995317 is about 235.1052312777.

The spelling of 12995317 in words is "twelve million, nine hundred ninety-five thousand, three hundred seventeen".