13155530 has 8 divisors (see below), whose sum is σ = 23679972. Its totient is φ = 5262208.

The previous prime is 13155529. The next prime is 13155533. The reversal of 13155530 is 3555131.

13155530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13053769 + 101761 = 3613^2 + 319^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13155496 and 13155505.

It is not an unprimeable number, because it can be changed into a prime (13155533) 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, 657767 + ... + 657786.

Almost surely, 2^13155530 is an apocalyptic number.

13155530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13155530 is a deficient number, since it is larger than the sum of its proper divisors (10524442).

13155530 is a wasteful number, since it uses less digits than its factorization.

13155530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315560.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 13155530 is about 3627.0552794243. The cubic root of 13155530 is about 236.0674541454.

The spelling of 13155530 in words is "thirteen million, one hundred fifty-five thousand, five hundred thirty".