12685419 has 6 divisors (see below), whose sum is σ = 18323396. Its totient is φ = 8456940.

The previous prime is 12685411. The next prime is 12685427. The reversal of 12685419 is 91458621.

It is an interprime number because it is at equal distance from previous prime (12685411) and next prime (12685427).

It is not a de Polignac number, because 12685419 - 2³ = 12685411 is a prime.

It is a super-2 number, since 2×12685419² = 321839710411122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12685411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 704737 + ... + 704754.

Almost surely, 2^12685419 is an apocalyptic number.

12685419 is a deficient number, since it is larger than the sum of its proper divisors (5637977).

12685419 is a wasteful number, since it uses less digits than its factorization.

12685419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409497 (or 1409494 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 12685419 is about 3561.6595850811. The cubic root of 12685419 is about 233.2213324155.

The spelling of 12685419 in words is "twelve million, six hundred eighty-five thousand, four hundred nineteen".