12713128 has 16 divisors (see below), whose sum is σ = 25092000. Its totient is φ = 6021936.

The previous prime is 12713123. The next prime is 12713137. The reversal of 12713128 is 82131721.

It is a happy number.

12713128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12713123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41668 + ... + 41971.

It is an arithmetic number, because the mean of its divisors is an integer number (1568250).

Almost surely, 2^12713128 is an apocalyptic number.

It is an amenable number.

12713128 is a deficient number, since it is larger than the sum of its proper divisors (12378872).

12713128 is a wasteful number, since it uses less digits than its factorization.

12713128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83664 (or 83660 counting only the distinct ones).

The product of its digits is 672, while the sum is 25.

The square root of 12713128 is about 3565.5473633090. The cubic root of 12713128 is about 233.3910188442.

Adding to 12713128 its reverse (82131721), we get a palindrome (94844849).

The spelling of 12713128 in words is "twelve million, seven hundred thirteen thousand, one hundred twenty-eight".