13155155 has 8 divisors (see below), whose sum is σ = 17000592. Its totient is φ = 9714528.

The previous prime is 13155143. The next prime is 13155157. The reversal of 13155155 is 55155131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13155155 - 2⁴ = 13155139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13155157) 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 7 ways as a sum of consecutive naturals, for example, 101129 + ... + 101258.

It is an arithmetic number, because the mean of its divisors is an integer number (2125074).

Almost surely, 2^13155155 is an apocalyptic number.

13155155 is a deficient number, since it is larger than the sum of its proper divisors (3845437).

13155155 is a wasteful number, since it uses less digits than its factorization.

13155155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202405.

The product of its digits is 1875, while the sum is 26.

The square root of 13155155 is about 3627.0035842276. The cubic root of 13155155 is about 236.0652110802.

Subtracting from 13155155 its sum of digits (26), we obtain a square (13155129 = 3627²).

The spelling of 13155155 in words is "thirteen million, one hundred fifty-five thousand, one hundred fifty-five".