12940937 has 2 divisors, whose sum is σ = 12940938. Its totient is φ = 12940936.

The previous prime is 12940909. The next prime is 12940943. The reversal of 12940937 is 73904921.

12940937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6869641 + 6071296 = 2621^2 + 2464^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12940937 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12940897 and 12940906.

It is not a weakly prime, because it can be changed into another prime (12940987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6470468 + 6470469.

It is an arithmetic number, because the mean of its divisors is an integer number (6470469).

Almost surely, 2^12940937 is an apocalyptic number.

It is an amenable number.

12940937 is a deficient number, since it is larger than the sum of its proper divisors (1).

12940937 is an equidigital number, since it uses as much as digits as its factorization.

12940937 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 12940937 is about 3597.3513867844. The cubic root of 12940937 is about 234.7768335586.

The spelling of 12940937 in words is "twelve million, nine hundred forty thousand, nine hundred thirty-seven".