12255797 has 2 divisors, whose sum is σ = 12255798. Its totient is φ = 12255796.

The previous prime is 12255791. The next prime is 12255799. The reversal of 12255797 is 79755221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9480241 + 2775556 = 3079^2 + 1666^2 .

It is a cyclic number.

It is not a de Polignac number, because 12255797 - 2⁴ = 12255781 is a prime.

Together with 12255799, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12255797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12255791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6127898 + 6127899.

It is an arithmetic number, because the mean of its divisors is an integer number (6127899).

Almost surely, 2^12255797 is an apocalyptic number.

It is an amenable number.

12255797 is a deficient number, since it is larger than the sum of its proper divisors (1).

12255797 is an equidigital number, since it uses as much as digits as its factorization.

12255797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44100, while the sum is 38.

The square root of 12255797 is about 3500.8280449059. The cubic root of 12255797 is about 230.5581717245.

The spelling of 12255797 in words is "twelve million, two hundred fifty-five thousand, seven hundred ninety-seven".