12855419 has 4 divisors (see below), whose sum is σ = 13532040. Its totient is φ = 12178800.

The previous prime is 12855407. The next prime is 12855449. The reversal of 12855419 is 91455821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91455821 = 29 ⋅3153649.

It is a cyclic number.

It is not a de Polignac number, because 12855419 - 2¹² = 12851323 is a prime.

It is a super-2 number, since 2×12855419² = 330523595331122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12855449) 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 3 ways as a sum of consecutive naturals, for example, 338282 + ... + 338319.

It is an arithmetic number, because the mean of its divisors is an integer number (3383010).

Almost surely, 2^12855419 is an apocalyptic number.

12855419 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12855419 is a deficient number, since it is larger than the sum of its proper divisors (676621).

12855419 is an equidigital number, since it uses as much as digits as its factorization.

12855419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676620.

The product of its digits is 14400, while the sum is 35.

The square root of 12855419 is about 3585.4454395514. The cubic root of 12855419 is about 234.2585291288.

The spelling of 12855419 in words is "twelve million, eight hundred fifty-five thousand, four hundred nineteen".