13119917 has 2 divisors, whose sum is σ = 13119918. Its totient is φ = 13119916.

The previous prime is 13119901. The next prime is 13119943. The reversal of 13119917 is 71991131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12432676 + 687241 = 3526^2 + 829^2 .

It is an emirp because it is prime and its reverse (71991131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13119917 - 2⁴ = 13119901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13119817) 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, 6559958 + 6559959.

It is an arithmetic number, because the mean of its divisors is an integer number (6559959).

Almost surely, 2^13119917 is an apocalyptic number.

It is an amenable number.

13119917 is a deficient number, since it is larger than the sum of its proper divisors (1).

13119917 is an equidigital number, since it uses as much as digits as its factorization.

13119917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1701, while the sum is 32.

The square root of 13119917 is about 3622.1425979660. The cubic root of 13119917 is about 235.8542442415.

The spelling of 13119917 in words is "thirteen million, one hundred nineteen thousand, nine hundred seventeen".