12255317 has 4 divisors (see below), whose sum is σ = 12976236. Its totient is φ = 11534400.

The previous prime is 12255277. The next prime is 12255319. The reversal of 12255317 is 71355221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11464996 + 790321 = 3386^2 + 889^2 .

It is a cyclic number.

It is not a de Polignac number, because 12255317 - 2¹⁶ = 12189781 is a prime.

It is a zygodrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12255319) 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, 360434 + ... + 360467.

It is an arithmetic number, because the mean of its divisors is an integer number (3244059).

Almost surely, 2^12255317 is an apocalyptic number.

12255317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

12255317 is a deficient number, since it is larger than the sum of its proper divisors (720919).

12255317 is an equidigital number, since it uses as much as digits as its factorization.

12255317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720918.

The product of its digits is 2100, while the sum is 26.

The square root of 12255317 is about 3500.7594890252. The cubic root of 12255317 is about 230.5551617376. Note that the first 3 decimals are identical.

The spelling of 12255317 in words is "twelve million, two hundred fifty-five thousand, three hundred seventeen".