12489136 has 30 divisors (see below), whose sum is σ = 26601596. Its totient is φ = 5676000.

The previous prime is 12489119. The next prime is 12489143. The reversal of 12489136 is 63198421.

12489136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1290 + ... + 5161.

Almost surely, 2^12489136 is an apocalyptic number.

12489136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12489136 is an abundant number, since it is smaller than the sum of its proper divisors (14112460).

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

12489136 is a wasteful number, since it uses less digits than its factorization.

12489136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6481 (or 6464 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 12489136 is about 3533.9971703441. The cubic root of 12489136 is about 232.0121872314.

The spelling of 12489136 in words is "twelve million, four hundred eighty-nine thousand, one hundred thirty-six".