12720255 has 8 divisors (see below), whose sum is σ = 20352432. Its totient is φ = 6784128.

The previous prime is 12720247. The next prime is 12720271. The reversal of 12720255 is 55202721.

12720255 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 not a de Polignac number, because 12720255 - 2³ = 12720247 is a prime.

It is a congruent 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, 423994 + ... + 424023.

It is an arithmetic number, because the mean of its divisors is an integer number (2544054).

Almost surely, 2^12720255 is an apocalyptic number.

12720255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12720255 is a deficient number, since it is larger than the sum of its proper divisors (7632177).

12720255 is an equidigital number, since it uses as much as digits as its factorization.

12720255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848025.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 12720255 is about 3566.5466490711. The cubic root of 12720255 is about 233.4346238237.

Adding to 12720255 its reverse (55202721), we get a palindrome (67922976).

The spelling of 12720255 in words is "twelve million, seven hundred twenty thousand, two hundred fifty-five".