12313709 has 2 divisors, whose sum is σ = 12313710. Its totient is φ = 12313708.

The previous prime is 12313703. The next prime is 12313747. The reversal of 12313709 is 90731321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9320809 + 2992900 = 3053^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 12313709 - 2¹² = 12309613 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12313703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156854 + 6156855.

It is an arithmetic number, because the mean of its divisors is an integer number (6156855).

Almost surely, 2^12313709 is an apocalyptic number.

It is an amenable number.

12313709 is a deficient number, since it is larger than the sum of its proper divisors (1).

12313709 is an equidigital number, since it uses as much as digits as its factorization.

12313709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 12313709 is about 3509.0894830426. The cubic root of 12313709 is about 230.9207514116.

The spelling of 12313709 in words is "twelve million, three hundred thirteen thousand, seven hundred nine".