1336385 has 4 divisors (see below), whose sum is σ = 1603668. Its totient is φ = 1069104.

The previous prime is 1336343. The next prime is 1336393. The reversal of 1336385 is 5836331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5836331 = 373 ⋅15647.

It can be written as a sum of positive squares in 2 ways, for example, as 473344 + 863041 = 688^2 + 929^2 .

It is a cyclic number.

It is not a de Polignac number, because 1336385 - 2¹⁰ = 1335361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133634 + ... + 133643.

It is an arithmetic number, because the mean of its divisors is an integer number (400917).

2^1336385 is an apocalyptic number.

It is an amenable number.

1336385 is a deficient number, since it is larger than the sum of its proper divisors (267283).

1336385 is an equidigital number, since it uses as much as digits as its factorization.

1336385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267282.

The product of its digits is 6480, while the sum is 29.

The square root of 1336385 is about 1156.0211935773. The cubic root of 1336385 is about 110.1481474935.

The spelling of 1336385 in words is "one million, three hundred thirty-six thousand, three hundred eighty-five".