12297257 has 8 divisors (see below), whose sum is σ = 14157696. Its totient is φ = 10462752.

The previous prime is 12297227. The next prime is 12297277. The reversal of 12297257 is 75279221.

12297257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12297257 - 2¹² = 12293161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12297217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5453 + ... + 7370.

It is an arithmetic number, because the mean of its divisors is an integer number (1769712).

Almost surely, 2^12297257 is an apocalyptic number.

It is an amenable number.

12297257 is a deficient number, since it is larger than the sum of its proper divisors (1860439).

12297257 is a wasteful number, since it uses less digits than its factorization.

12297257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12967.

The product of its digits is 17640, while the sum is 35.

The square root of 12297257 is about 3506.7445016710. The cubic root of 12297257 is about 230.8178633373.

It can be divided in two parts, 122 and 97257, that added together give a palindrome (97379).

The spelling of 12297257 in words is "twelve million, two hundred ninety-seven thousand, two hundred fifty-seven".