12493128 has 16 divisors (see below), whose sum is σ = 31232880. Its totient is φ = 4164368.

The previous prime is 12493123. The next prime is 12493133. The reversal of 12493128 is 82139421.

It is an interprime number because it is at equal distance from previous prime (12493123) and next prime (12493133).

It is a junction number, because it is equal to n+sod(n) for n = 12493095 and 12493104.

It is not an unprimeable number, because it can be changed into a prime (12493123) 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 3 ways as a sum of consecutive naturals, for example, 260250 + ... + 260297.

It is an arithmetic number, because the mean of its divisors is an integer number (1952055).

Almost surely, 2^12493128 is an apocalyptic number.

It is an amenable number.

12493128 is an abundant number, since it is smaller than the sum of its proper divisors (18739752).

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

12493128 is a wasteful number, since it uses less digits than its factorization.

12493128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520556 (or 520552 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 12493128 is about 3534.5619247652. The cubic root of 12493128 is about 232.0369045533.

It can be divided in two parts, 12493 and 128, that added together give a palindrome (12621).

The spelling of 12493128 in words is "twelve million, four hundred ninety-three thousand, one hundred twenty-eight".