12946237 has 2 divisors, whose sum is σ = 12946238. Its totient is φ = 12946236.

The previous prime is 12946229. The next prime is 12946259. The reversal of 12946237 is 73264921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7901721 + 5044516 = 2811^2 + 2246^2 .

It is a cyclic number.

It is not a de Polignac number, because 12946237 - 2³ = 12946229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12947237) 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 as a sum of consecutive naturals, namely, 6473118 + 6473119.

It is an arithmetic number, because the mean of its divisors is an integer number (6473119).

Almost surely, 2^12946237 is an apocalyptic number.

It is an amenable number.

12946237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12946237 is an equidigital number, since it uses as much as digits as its factorization.

12946237 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 34.

The square root of 12946237 is about 3598.0879644611. The cubic root of 12946237 is about 234.8088803721.

The spelling of 12946237 in words is "twelve million, nine hundred forty-six thousand, two hundred thirty-seven".