12285257 has 2 divisors, whose sum is σ = 12285258. Its totient is φ = 12285256.

The previous prime is 12285253. The next prime is 12285263. The reversal of 12285257 is 75258221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10883401 + 1401856 = 3299^2 + 1184^2 .

It is a cyclic number.

It is not a de Polignac number, because 12285257 - 2² = 12285253 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12285253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6142628 + 6142629.

It is an arithmetic number, because the mean of its divisors is an integer number (6142629).

Almost surely, 2^12285257 is an apocalyptic number.

It is an amenable number.

12285257 is a deficient number, since it is larger than the sum of its proper divisors (1).

12285257 is an equidigital number, since it uses as much as digits as its factorization.

12285257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11200, while the sum is 32.

The square root of 12285257 is about 3505.0330954215. The cubic root of 12285257 is about 230.7427594394.

The spelling of 12285257 in words is "twelve million, two hundred eighty-five thousand, two hundred fifty-seven".