13655985 has 16 divisors (see below), whose sum is σ = 24971136. Its totient is φ = 6242688.

The previous prime is 13655959. The next prime is 13655989. The reversal of 13655985 is 58955631.

13655985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13655985 - 2⁵ = 13655953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13655989) 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 15 ways as a sum of consecutive naturals, for example, 64924 + ... + 65133.

It is an arithmetic number, because the mean of its divisors is an integer number (1560696).

Almost surely, 2^13655985 is an apocalyptic number.

13655985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13655985 is a deficient number, since it is larger than the sum of its proper divisors (11315151).

13655985 is a wasteful number, since it uses less digits than its factorization.

13655985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130072.

The product of its digits is 162000, while the sum is 42.

The square root of 13655985 is about 3695.4005195648. The cubic root of 13655985 is about 239.0237250539.

The spelling of 13655985 in words is "thirteen million, six hundred fifty-five thousand, nine hundred eighty-five".