12903313 has 2 divisors, whose sum is σ = 12903314. Its totient is φ = 12903312.

The previous prime is 12903287. The next prime is 12903349. The reversal of 12903313 is 31330921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12552849 + 350464 = 3543^2 + 592^2 .

It is a cyclic number.

It is not a de Polignac number, because 12903313 - 2⁵ = 12903281 is a prime.

It is not a weakly prime, because it can be changed into another prime (12903383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6451656 + 6451657.

It is an arithmetic number, because the mean of its divisors is an integer number (6451657).

Almost surely, 2^12903313 is an apocalyptic number.

It is an amenable number.

12903313 is a deficient number, since it is larger than the sum of its proper divisors (1).

12903313 is an equidigital number, since it uses as much as digits as its factorization.

12903313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 12903313 is about 3592.1181773433. The cubic root of 12903313 is about 234.5490855493.

The spelling of 12903313 in words is "twelve million, nine hundred three thousand, three hundred thirteen".