12942913 has 2 divisors, whose sum is σ = 12942914. Its totient is φ = 12942912.

The previous prime is 12942911. The next prime is 12942929. The reversal of 12942913 is 31924921.

12942913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12873744 + 69169 = 3588^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 12942913 - 2¹ = 12942911 is a prime.

Together with 12942911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12942911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6471456 + 6471457.

It is an arithmetic number, because the mean of its divisors is an integer number (6471457).

Almost surely, 2^12942913 is an apocalyptic number.

It is an amenable number.

12942913 is a deficient number, since it is larger than the sum of its proper divisors (1).

12942913 is an equidigital number, since it uses as much as digits as its factorization.

12942913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 12942913 is about 3597.6260228100. The cubic root of 12942913 is about 234.7887826009.

The spelling of 12942913 in words is "twelve million, nine hundred forty-two thousand, nine hundred thirteen".