12257316 has 18 divisors (see below), whose sum is σ = 30983862. Its totient is φ = 4085760.

The previous prime is 12257293. The next prime is 12257317. The reversal of 12257316 is 61375221.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7617600 + 4639716 = 2760^2 + 2154^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 12257316.

It is not an unprimeable number, because it can be changed into a prime (12257317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170205 + ... + 170276.

Almost surely, 2^12257316 is an apocalyptic number.

It is an amenable number.

12257316 is an abundant number, since it is smaller than the sum of its proper divisors (18726546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12257316 is a wasteful number, since it uses less digits than its factorization.

12257316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340491 (or 340486 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 12257316 is about 3501.0449868575. The cubic root of 12257316 is about 230.5676965612.

The spelling of 12257316 in words is "twelve million, two hundred fifty-seven thousand, three hundred sixteen".