12530736 has 60 divisors (see below), whose sum is σ = 35341488. Its totient is φ = 4144512.

The previous prime is 12530729. The next prime is 12530773. The reversal of 12530736 is 63703521.

It is a happy number.

12530736 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 11 ways as a sum of consecutive naturals, for example, 24661 + ... + 25163.

Almost surely, 2^12530736 is an apocalyptic number.

12530736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12530736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17670744).

12530736 is an abundant number, since it is smaller than the sum of its proper divisors (22810752).

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

12530736 is a wasteful number, since it uses less digits than its factorization.

12530736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 681 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 12530736 is about 3539.8779639982. The cubic root of 12530736 is about 232.2695044843.

The spelling of 12530736 in words is "twelve million, five hundred thirty thousand, seven hundred thirty-six".