12803139 has 12 divisors (see below), whose sum is σ = 18617872. Its totient is φ = 8478000.

The previous prime is 12803137. The next prime is 12803171. The reversal of 12803139 is 93130821.

It is not a de Polignac number, because 12803139 - 2¹ = 12803137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12803137) 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 11 ways as a sum of consecutive naturals, for example, 3352 + ... + 6069.

Almost surely, 2^12803139 is an apocalyptic number.

12803139 is a deficient number, since it is larger than the sum of its proper divisors (5814733).

12803139 is a wasteful number, since it uses less digits than its factorization.

12803139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9578 (or 9575 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12803139 is about 3578.1474256939. The cubic root of 12803139 is about 233.9405393518.

The spelling of 12803139 in words is "twelve million, eight hundred three thousand, one hundred thirty-nine".