13618343 has 4 divisors (see below), whose sum is σ = 14419440. Its totient is φ = 12817248.

The previous prime is 13618303. The next prime is 13618357. The reversal of 13618343 is 34381631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13618343 - 2⁶ = 13618279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13618303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400523 + ... + 400556.

It is an arithmetic number, because the mean of its divisors is an integer number (3604860).

Almost surely, 2^13618343 is an apocalyptic number.

13618343 is a deficient number, since it is larger than the sum of its proper divisors (801097).

13618343 is an equidigital number, since it uses as much as digits as its factorization.

13618343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 801096.

The product of its digits is 5184, while the sum is 29.

The square root of 13618343 is about 3690.3039170236. The cubic root of 13618343 is about 238.8039042053.

Adding to 13618343 its reverse (34381631), we get a palindrome (47999974).

The spelling of 13618343 in words is "thirteen million, six hundred eighteen thousand, three hundred forty-three".