12517980 has 96 divisors (see below), whose sum is σ = 37545984. Its totient is φ = 3108864.

The previous prime is 12517969. The next prime is 12517987. The reversal of 12517980 is 8971521.

12517980 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12517987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64764 + ... + 64956.

It is an arithmetic number, because the mean of its divisors is an integer number (391104).

Almost surely, 2^12517980 is an apocalyptic number.

12517980 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 12517980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18772992).

12517980 is an abundant number, since it is smaller than the sum of its proper divisors (25028004).

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

12517980 is a wasteful number, since it uses less digits than its factorization.

12517980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 12517980 is about 3538.0757481999. The cubic root of 12517980 is about 232.1906627272.

The spelling of 12517980 in words is "twelve million, five hundred seventeen thousand, nine hundred eighty".