1341809 has 8 divisors (see below), whose sum is σ = 1556928. Its totient is φ = 1132560.

The previous prime is 1341787. The next prime is 1341839. The reversal of 1341809 is 9081431.

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 1341809 - 2⁸ = 1341553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1341839) 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, 962 + ... + 1899.

It is an arithmetic number, because the mean of its divisors is an integer number (194616).

2^1341809 is an apocalyptic number.

It is an amenable number.

1341809 is a deficient number, since it is larger than the sum of its proper divisors (215119).

1341809 is an equidigital number, since it uses as much as digits as its factorization.

1341809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2935.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1341809 is about 1158.3647957358. The cubic root of 1341809 is about 110.2969661563.

The spelling of 1341809 in words is "one million, three hundred forty-one thousand, eight hundred nine".