12258012 has 24 divisors (see below), whose sum is σ = 30802576. Its totient is φ = 3771648.

The previous prime is 12258007. The next prime is 12258041. The reversal of 12258012 is 21085221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12258012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39133 + ... + 39444.

Almost surely, 2^12258012 is an apocalyptic number.

12258012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12258012 is an abundant number, since it is smaller than the sum of its proper divisors (18544564).

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

12258012 is a wasteful number, since it uses less digits than its factorization.

12258012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78597 (or 78595 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 12258012 is about 3501.1443843406. The cubic root of 12258012 is about 230.5720605422.

The spelling of 12258012 in words is "twelve million, two hundred fifty-eight thousand, twelve".