13655120 has 20 divisors (see below), whose sum is σ = 31748340. Its totient is φ = 5462016.

The previous prime is 13655119. The next prime is 13655141. The reversal of 13655120 is 2155631.

It can be written as a sum of positive squares in 2 ways, for example, as 9024016 + 4631104 = 3004^2 + 2152^2 .

It is a tau number, because it is divible by the number of its divisors (20).

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, 85265 + ... + 85424.

It is an arithmetic number, because the mean of its divisors is an integer number (1587417).

Almost surely, 2^13655120 is an apocalyptic number.

13655120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13655120 is an abundant number, since it is smaller than the sum of its proper divisors (18093220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13655120 is a wasteful number, since it uses less digits than its factorization.

13655120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170702 (or 170696 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 13655120 is about 3695.2834803300. The cubic root of 13655120 is about 239.0186781852.

The spelling of 13655120 in words is "thirteen million, six hundred fifty-five thousand, one hundred twenty".