12397512 has 16 divisors (see below), whose sum is σ = 30993840. Its totient is φ = 4132496.

The previous prime is 12397499. The next prime is 12397513. The reversal of 12397512 is 21579321.

It is a self number, because there is not a number n which added to its sum of digits gives 12397512.

It is not an unprimeable number, because it can be changed into a prime (12397513) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 258258 + ... + 258305.

It is an arithmetic number, because the mean of its divisors is an integer number (1937115).

Almost surely, 2^12397512 is an apocalyptic number.

12397512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12397512 is an abundant number, since it is smaller than the sum of its proper divisors (18596328).

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

12397512 is a wasteful number, since it uses less digits than its factorization.

12397512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516572 (or 516568 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 12397512 is about 3521.0100823485. The cubic root of 12397512 is about 231.4434240473.

The spelling of 12397512 in words is "twelve million, three hundred ninety-seven thousand, five hundred twelve".