12715320 has 128 divisors (see below), whose sum is σ = 42301440. Its totient is φ = 3041280.

The previous prime is 12715291. The next prime is 12715331. The reversal of 12715320 is 2351721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46785 + ... + 47055.

It is an arithmetic number, because the mean of its divisors is an integer number (330480).

Almost surely, 2^12715320 is an apocalyptic number.

12715320 is a gapful number since it is divisible by the number (10) 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 12715320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21150720).

12715320 is an abundant number, since it is smaller than the sum of its proper divisors (29586120).

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

12715320 is a wasteful number, since it uses less digits than its factorization.

12715320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 12715320 is about 3565.8547362449. The cubic root of 12715320 is about 233.4044318483.

The spelling of 12715320 in words is "twelve million, seven hundred fifteen thousand, three hundred twenty".