12615980 has 24 divisors (see below), whose sum is σ = 28532112. Its totient is φ = 4658112.

The previous prime is 12615949. The next prime is 12615991. The reversal of 12615980 is 8951621.

It is a super-3 number, since 3×12615980³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24002 + ... + 24521.

It is an arithmetic number, because the mean of its divisors is an integer number (1188838).

Almost surely, 2^12615980 is an apocalyptic number.

12615980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12615980 is an abundant number, since it is smaller than the sum of its proper divisors (15916132).

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

12615980 is a wasteful number, since it uses less digits than its factorization.

12615980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48545 (or 48543 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 12615980 is about 3551.8980841235. The cubic root of 12615980 is about 232.7950084152.

The spelling of 12615980 in words is "twelve million, six hundred fifteen thousand, nine hundred eighty".