13678131 has 8 divisors (see below), whose sum is σ = 18408384. Its totient is φ = 9033320.

The previous prime is 13678121. The next prime is 13678141. The reversal of 13678131 is 13187631.

13678131 is digitally balanced in base 2, 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 (13678121) and next prime (13678141).

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

It is a cyclic number.

It is not a de Polignac number, because 13678131 - 2⁷ = 13678003 is a prime.

It is a super-2 number, since 2×13678131² = 374182535306322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13678121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20985 + ... + 21626.

It is an arithmetic number, because the mean of its divisors is an integer number (2301048).

Almost surely, 2^13678131 is an apocalyptic number.

13678131 is a deficient number, since it is larger than the sum of its proper divisors (4730253).

13678131 is a wasteful number, since it uses less digits than its factorization.

13678131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42721.

The product of its digits is 3024, while the sum is 30.

The square root of 13678131 is about 3698.3957332876. The cubic root of 13678131 is about 239.1528640488.

The spelling of 13678131 in words is "thirteen million, six hundred seventy-eight thousand, one hundred thirty-one".