12803345 has 4 divisors (see below), whose sum is σ = 15364020. Its totient is φ = 10242672.

The previous prime is 12803327. The next prime is 12803347. The reversal of 12803345 is 54330821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54330821 = 1999 ⋅27179.

It can be written as a sum of positive squares in 2 ways, for example, as 1324801 + 11478544 = 1151^2 + 3388^2 .

It is a cyclic number.

It is not a de Polignac number, because 12803345 - 2⁶ = 12803281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12803347) 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, 1280330 + ... + 1280339.

It is an arithmetic number, because the mean of its divisors is an integer number (3841005).

Almost surely, 2^12803345 is an apocalyptic number.

It is an amenable number.

12803345 is a deficient number, since it is larger than the sum of its proper divisors (2560675).

12803345 is an equidigital number, since it uses as much as digits as its factorization.

12803345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560674.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 12803345 is about 3578.1762114239. The cubic root of 12803345 is about 233.9417940309.

The spelling of 12803345 in words is "twelve million, eight hundred three thousand, three hundred forty-five".