12663155 has 8 divisors (see below), whose sum is σ = 15232752. Its totient is φ = 10105888.

The previous prime is 12663143. The next prime is 12663191. The reversal of 12663155 is 55136621.

12663155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12663155 - 2⁸ = 12662899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (1904094).

Almost surely, 2^12663155 is an apocalyptic number.

12663155 is a deficient number, since it is larger than the sum of its proper divisors (2569597).

12663155 is an equidigital number, since it uses as much as digits as its factorization.

12663155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6165.

The product of its digits is 5400, while the sum is 29.

The square root of 12663155 is about 3558.5327032360. The cubic root of 12663155 is about 233.0848113584.

Adding to 12663155 its reverse (55136621), we get a palindrome (67799776).

The spelling of 12663155 in words is "twelve million, six hundred sixty-three thousand, one hundred fifty-five".