13425681 has 8 divisors (see below), whose sum is σ = 17953600. Its totient is φ = 8924112.

The previous prime is 13425679. The next prime is 13425683. The reversal of 13425681 is 18652431.

13425681 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 (13425679) and next prime (13425683).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13425681 - 2¹ = 13425679 is a prime.

It is a super-2 number, since 2×13425681² = 360497820627522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13425683) 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 7 ways as a sum of consecutive naturals, for example, 5365 + ... + 7458.

It is an arithmetic number, because the mean of its divisors is an integer number (2244200).

Almost surely, 2^13425681 is an apocalyptic number.

It is an amenable number.

13425681 is a deficient number, since it is larger than the sum of its proper divisors (4527919).

13425681 is a wasteful number, since it uses less digits than its factorization.

13425681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13175.

The product of its digits is 5760, while the sum is 30.

The square root of 13425681 is about 3664.1071217965. The cubic root of 13425681 is about 237.6724125727.

The spelling of 13425681 in words is "thirteen million, four hundred twenty-five thousand, six hundred eighty-one".