12669219 has 24 divisors (see below), whose sum is σ = 19722560. Its totient is φ = 7810992.

The previous prime is 12669211. The next prime is 12669229. The reversal of 12669219 is 91296621.

It is not a de Polignac number, because 12669219 - 2³ = 12669211 is a prime.

It is a super-2 number, since 2×12669219² = 321018220139922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12669211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6492 + ... + 8214.

Almost surely, 2^12669219 is an apocalyptic number.

12669219 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12669219 is a deficient number, since it is larger than the sum of its proper divisors (7053341).

12669219 is a wasteful number, since it uses less digits than its factorization.

12669219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791 (or 1788 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 12669219 is about 3559.3846378272. The cubic root of 12669219 is about 233.1220111647.

The spelling of 12669219 in words is "twelve million, six hundred sixty-nine thousand, two hundred nineteen".