13618655 has 4 divisors (see below), whose sum is σ = 16342392. Its totient is φ = 10894920.

The previous prime is 13618613. The next prime is 13618667. The reversal of 13618655 is 55681631.

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

It is not a de Polignac number, because 13618655 - 2⁸ = 13618399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1361861 + ... + 1361870.

It is an arithmetic number, because the mean of its divisors is an integer number (4085598).

Almost surely, 2^13618655 is an apocalyptic number.

13618655 is a deficient number, since it is larger than the sum of its proper divisors (2723737).

13618655 is an equidigital number, since it uses as much as digits as its factorization.

13618655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723736.

The product of its digits is 21600, while the sum is 35.

The square root of 13618655 is about 3690.3461897226. The cubic root of 13618655 is about 238.8057278792.

The spelling of 13618655 in words is "thirteen million, six hundred eighteen thousand, six hundred fifty-five".