12856037 has 2 divisors, whose sum is σ = 12856038. Its totient is φ = 12856036.

The previous prime is 12856033. The next prime is 12856069. The reversal of 12856037 is 73065821.

It is a happy number.

It is an a-pointer prime, because the next prime (12856069) can be obtained adding 12856037 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12292036 + 564001 = 3506^2 + 751^2 .

It is an emirp because it is prime and its reverse (73065821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12856037 - 2² = 12856033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12855994 and 12856012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12856033) 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, 6428018 + 6428019.

It is an arithmetic number, because the mean of its divisors is an integer number (6428019).

Almost surely, 2^12856037 is an apocalyptic number.

It is an amenable number.

12856037 is a deficient number, since it is larger than the sum of its proper divisors (1).

12856037 is an equidigital number, since it uses as much as digits as its factorization.

12856037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 12856037 is about 3585.5316202761. The cubic root of 12856037 is about 234.2622829142.

It can be divided in two parts, 128 and 56037, that added together give a palindrome (56165).

The spelling of 12856037 in words is "twelve million, eight hundred fifty-six thousand, thirty-seven".