13418231 has 4 divisors (see below), whose sum is σ = 13638264. Its totient is φ = 13198200.

The previous prime is 13418201. The next prime is 13418243. The reversal of 13418231 is 13281431.

13418231 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13281431 = 59 ⋅225109.

It is a cyclic number.

It is not a de Polignac number, because 13418231 - 2²² = 9223927 is a prime.

It is a super-2 number, since 2×13418231² = 360097846338722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13418197 and 13418206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13418201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109925 + ... + 110046.

It is an arithmetic number, because the mean of its divisors is an integer number (3409566).

Almost surely, 2^13418231 is an apocalyptic number.

13418231 is a deficient number, since it is larger than the sum of its proper divisors (220033).

13418231 is an equidigital number, since it uses as much as digits as its factorization.

13418231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220032.

The product of its digits is 576, while the sum is 23.

The square root of 13418231 is about 3663.0903619758. The cubic root of 13418231 is about 237.6284424358.

Adding to 13418231 its reverse (13281431), we get a palindrome (26699662).

The spelling of 13418231 in words is "thirteen million, four hundred eighteen thousand, two hundred thirty-one".