12919597 has 2 divisors, whose sum is σ = 12919598. Its totient is φ = 12919596.

The previous prime is 12919573. The next prime is 12919619. The reversal of 12919597 is 79591921.

12919597 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., 12257001 + 662596 = 3501^2 + 814^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12919597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12919567) 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, 6459798 + 6459799.

It is an arithmetic number, because the mean of its divisors is an integer number (6459799).

Almost surely, 2^12919597 is an apocalyptic number.

It is an amenable number.

12919597 is a deficient number, since it is larger than the sum of its proper divisors (1).

12919597 is an equidigital number, since it uses as much as digits as its factorization.

12919597 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51030, while the sum is 43.

The square root of 12919597 is about 3594.3840918856. The cubic root of 12919597 is about 234.6477111694.

The spelling of 12919597 in words is "twelve million, nine hundred nineteen thousand, five hundred ninety-seven".