12655019 has 8 divisors (see below), whose sum is σ = 13961472. Its totient is φ = 11396160.

The previous prime is 12655003. The next prime is 12655033. The reversal of 12655019 is 91055621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12655019 - 2⁴ = 12655003 is a prime.

It is a super-2 number, since 2×12655019² = 320299011780722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12654982 and 12655000.

It is not an unprimeable number, because it can be changed into a prime (12655039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11339 + ... + 12404.

It is an arithmetic number, because the mean of its divisors is an integer number (1745184).

Almost surely, 2^12655019 is an apocalyptic number.

12655019 is a deficient number, since it is larger than the sum of its proper divisors (1306453).

12655019 is a wasteful number, since it uses less digits than its factorization.

12655019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23797.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 12655019 is about 3557.3893517578. The cubic root of 12655019 is about 233.0348821397.

The spelling of 12655019 in words is "twelve million, six hundred fifty-five thousand, nineteen".