12930555 has 16 divisors (see below), whose sum is σ = 22569984. Its totient is φ = 6269280.

The previous prime is 12930551. The next prime is 12930571. The reversal of 12930555 is 55503921.

It is not a de Polignac number, because 12930555 - 2² = 12930551 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12930551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39019 + ... + 39348.

It is an arithmetic number, because the mean of its divisors is an integer number (1410624).

Almost surely, 2^12930555 is an apocalyptic number.

12930555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12930555 is a deficient number, since it is larger than the sum of its proper divisors (9639429).

12930555 is a wasteful number, since it uses less digits than its factorization.

12930555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78386.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 12930555 is about 3595.9080911503. The cubic root of 12930555 is about 234.7140327171.

The spelling of 12930555 in words is "twelve million, nine hundred thirty thousand, five hundred fifty-five".