12282257 has 8 divisors (see below), whose sum is σ = 13387584. Its totient is φ = 11199888.

The previous prime is 12282241. The next prime is 12282269. The reversal of 12282257 is 75228221.

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 12282257 - 2⁴ = 12282241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12282217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4613 + ... + 6770.

It is an arithmetic number, because the mean of its divisors is an integer number (1673448).

Almost surely, 2^12282257 is an apocalyptic number.

It is an amenable number.

12282257 is a deficient number, since it is larger than the sum of its proper divisors (1105327).

12282257 is a wasteful number, since it uses less digits than its factorization.

12282257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11479.

The product of its digits is 4480, while the sum is 29.

The square root of 12282257 is about 3504.6051132760. The cubic root of 12282257 is about 230.7239758239.

The spelling of 12282257 in words is "twelve million, two hundred eighty-two thousand, two hundred fifty-seven".