13422681 has 12 divisors (see below), whose sum is σ = 19420180. Its totient is φ = 8933760.

The previous prime is 13422671. The next prime is 13422691. The reversal of 13422681 is 18622431.

13422681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13422671) and next prime (13422691).

It can be written as a sum of positive squares in 2 ways, for example, as 6843456 + 6579225 = 2616^2 + 2565^2 .

It is not a de Polignac number, because 13422681 - 2⁵ = 13422649 is a prime.

It is a super-2 number, since 2×13422681² = 360336730455522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13422631) 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 in 11 ways as a sum of consecutive naturals, for example, 9501 + ... + 10821.

Almost surely, 2^13422681 is an apocalyptic number.

It is an amenable number.

13422681 is a deficient number, since it is larger than the sum of its proper divisors (5997499).

13422681 is a wasteful number, since it uses less digits than its factorization.

13422681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2456 (or 2453 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 13422681 is about 3663.6977222473. The cubic root of 13422681 is about 237.6547084340.

The spelling of 13422681 in words is "thirteen million, four hundred twenty-two thousand, six hundred eighty-one".