12227457 has 8 divisors (see below), whose sum is σ = 17785440. Its totient is φ = 7410560.

The previous prime is 12227441. The next prime is 12227459. The reversal of 12227457 is 75472221.

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 12227457 - 2⁴ = 12227441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12227459) 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, 185232 + ... + 185297.

It is an arithmetic number, because the mean of its divisors is an integer number (2223180).

Almost surely, 2^12227457 is an apocalyptic number.

It is an amenable number.

12227457 is a deficient number, since it is larger than the sum of its proper divisors (5557983).

12227457 is a wasteful number, since it uses less digits than its factorization.

12227457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370543.

The product of its digits is 7840, while the sum is 30.

The square root of 12227457 is about 3496.7780884694. The cubic root of 12227457 is about 230.3803222428.

Adding to 12227457 its reverse (75472221), we get a palindrome (87699678).

The spelling of 12227457 in words is "twelve million, two hundred twenty-seven thousand, four hundred fifty-seven".