13486381 has 4 divisors (see below), whose sum is σ = 13499712. Its totient is φ = 13473052.

The previous prime is 13486373. The next prime is 13486393. The reversal of 13486381 is 18368431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18368431 = 251 ⋅73181.

It is a cyclic number.

It is not a de Polignac number, because 13486381 - 2³ = 13486373 is a prime.

It is a super-2 number, since 2×13486381² = 363764944954322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13486331) 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 in 3 ways as a sum of consecutive naturals, for example, 5011 + ... + 7216.

It is an arithmetic number, because the mean of its divisors is an integer number (3374928).

Almost surely, 2^13486381 is an apocalyptic number.

It is an amenable number.

13486381 is a deficient number, since it is larger than the sum of its proper divisors (13331).

13486381 is a wasteful number, since it uses less digits than its factorization.

13486381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13330.

The product of its digits is 13824, while the sum is 34.

The square root of 13486381 is about 3672.3808353710. The cubic root of 13486381 is about 238.0300611701.

The spelling of 13486381 in words is "thirteen million, four hundred eighty-six thousand, three hundred eighty-one".