12532720 has 20 divisors (see below), whose sum is σ = 29138760. Its totient is φ = 5013056.

The previous prime is 12532703. The next prime is 12532733. The reversal of 12532720 is 2723521.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 12532691 and 12532700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78250 + ... + 78409.

It is an arithmetic number, because the mean of its divisors is an integer number (1456938).

Almost surely, 2^12532720 is an apocalyptic number.

12532720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12532720 is an abundant number, since it is smaller than the sum of its proper divisors (16606040).

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

12532720 is a wasteful number, since it uses less digits than its factorization.

12532720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156672 (or 156666 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 12532720 is about 3540.1581885560. The cubic root of 12532720 is about 232.2817623006.

The spelling of 12532720 in words is "twelve million, five hundred thirty-two thousand, seven hundred twenty".