12904117 has 2 divisors, whose sum is σ = 12904118. Its totient is φ = 12904116.

The previous prime is 12904103. The next prime is 12904121. The reversal of 12904117 is 71140921.

12904117 is digitally balanced in base 3, 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., 12895281 + 8836 = 3591^2 + 94^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12904117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12904091 and 12904100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12904187) 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, 6452058 + 6452059.

It is an arithmetic number, because the mean of its divisors is an integer number (6452059).

Almost surely, 2^12904117 is an apocalyptic number.

It is an amenable number.

12904117 is a deficient number, since it is larger than the sum of its proper divisors (1).

12904117 is an equidigital number, since it uses as much as digits as its factorization.

12904117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 12904117 is about 3592.2300872856. The cubic root of 12904117 is about 234.5539569997.

The spelling of 12904117 in words is "twelve million, nine hundred four thousand, one hundred seventeen".