12512736 has 72 divisors (see below), whose sum is σ = 37149840. Its totient is φ = 3987456.

The previous prime is 12512723. The next prime is 12512737. The reversal of 12512736 is 63721521.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512737) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5680 + ... + 7568.

It is an arithmetic number, because the mean of its divisors is an integer number (515970).

Almost surely, 2^12512736 is an apocalyptic number.

12512736 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 12512736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18574920).

12512736 is an abundant number, since it is smaller than the sum of its proper divisors (24637104).

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

12512736 is a wasteful number, since it uses less digits than its factorization.

12512736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1928 (or 1917 counting only the distinct ones).

The product of its digits is 2520, while the sum is 27.

The square root of 12512736 is about 3537.3345897724. The cubic root of 12512736 is about 232.1582352935.

The spelling of 12512736 in words is "twelve million, five hundred twelve thousand, seven hundred thirty-six".