13212937 has 2 divisors, whose sum is σ = 13212938. Its totient is φ = 13212936.

The previous prime is 13212931. The next prime is 13212967. The reversal of 13212937 is 73921231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12823561 + 389376 = 3581^2 + 624^2 .

It is an emirp because it is prime and its reverse (73921231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13212937 - 2³ = 13212929 is a prime.

It is not a weakly prime, because it can be changed into another prime (13212931) 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, 6606468 + 6606469.

It is an arithmetic number, because the mean of its divisors is an integer number (6606469).

Almost surely, 2^13212937 is an apocalyptic number.

It is an amenable number.

13212937 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212937 is an equidigital number, since it uses as much as digits as its factorization.

13212937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 28.

The square root of 13212937 is about 3634.9603849286. The cubic root of 13212937 is about 236.4103330143.

The spelling of 13212937 in words is "thirteen million, two hundred twelve thousand, nine hundred thirty-seven".