12816258 has 32 divisors (see below), whose sum is σ = 31549056. Its totient is φ = 3379968.

The previous prime is 12816257. The next prime is 12816259. The reversal of 12816258 is 85261821.

It is an interprime number because it is at equal distance from previous prime (12816257) and next prime (12816259).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12816257) 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 15 ways as a sum of consecutive naturals, for example, 11191 + ... + 12282.

It is an arithmetic number, because the mean of its divisors is an integer number (985908).

Almost surely, 2^12816258 is an apocalyptic number.

12816258 is an abundant number, since it is smaller than the sum of its proper divisors (18732798).

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

12816258 is a wasteful number, since it uses less digits than its factorization.

12816258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23498.

The product of its digits is 7680, while the sum is 33.

The square root of 12816258 is about 3579.9801675428. The cubic root of 12816258 is about 234.0204160724.

The spelling of 12816258 in words is "twelve million, eight hundred sixteen thousand, two hundred fifty-eight".