13417681 has 2 divisors, whose sum is σ = 13417682. Its totient is φ = 13417680.

The previous prime is 13417673. The next prime is 13417727. The reversal of 13417681 is 18671431.

13417681 is digitally balanced in base 3, 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., 13075456 + 342225 = 3616^2 + 585^2 .

It is a cyclic number.

It is not a de Polignac number, because 13417681 - 2³ = 13417673 is a prime.

It is a super-2 number, since 2×13417681² = 360068326835522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13417631) 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, 6708840 + 6708841.

It is an arithmetic number, because the mean of its divisors is an integer number (6708841).

Almost surely, 2^13417681 is an apocalyptic number.

It is an amenable number.

13417681 is a deficient number, since it is larger than the sum of its proper divisors (1).

13417681 is an equidigital number, since it uses as much as digits as its factorization.

13417681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032, while the sum is 31.

The square root of 13417681 is about 3663.0152879834. The cubic root of 13417681 is about 237.6251956733.

The spelling of 13417681 in words is "thirteen million, four hundred seventeen thousand, six hundred eighty-one".