12255771 has 8 divisors (see below), whose sum is σ = 17826624. Its totient is φ = 7427720.

The previous prime is 12255743. The next prime is 12255781. The reversal of 12255771 is 17755221.

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 12255771 - 2⁹ = 12255259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12255781) 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 in 7 ways as a sum of consecutive naturals, for example, 185661 + ... + 185726.

It is an arithmetic number, because the mean of its divisors is an integer number (2228328).

Almost surely, 2^12255771 is an apocalyptic number.

12255771 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12255771 is a deficient number, since it is larger than the sum of its proper divisors (5570853).

12255771 is a wasteful number, since it uses less digits than its factorization.

12255771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371401.

The product of its digits is 4900, while the sum is 30.

The square root of 12255771 is about 3500.8243314968. The cubic root of 12255771 is about 230.5580086856.

It can be divided in two parts, 1225 and 5771, that added together give a palindrome (6996).

The spelling of 12255771 in words is "twelve million, two hundred fifty-five thousand, seven hundred seventy-one".