1412809 has 4 divisors (see below), whose sum is σ = 1415680. Its totient is φ = 1409940.

The previous prime is 1412797. The next prime is 1412813. The reversal of 1412809 is 9082141.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9082141 = 137 ⋅66293.

It is a cyclic number.

It is not a de Polignac number, because 1412809 - 2⁵ = 1412777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1412849) 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, 489 + ... + 1750.

It is an arithmetic number, because the mean of its divisors is an integer number (353920).

2^1412809 is an apocalyptic number.

It is an amenable number.

1412809 is a deficient number, since it is larger than the sum of its proper divisors (2871).

1412809 is an equidigital number, since it uses as much as digits as its factorization.

1412809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 1412809 is about 1188.6164225687. The cubic root of 1412809 is about 112.2090324588.

The spelling of 1412809 in words is "one million, four hundred twelve thousand, eight hundred nine".