12801135 has 16 divisors (see below), whose sum is σ = 20604384. Its totient is φ = 6786432.

The previous prime is 12801127. The next prime is 12801157. The reversal of 12801135 is 53110821.

It is not a de Polignac number, because 12801135 - 2³ = 12801127 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129 + ... + 5061.

It is an arithmetic number, because the mean of its divisors is an integer number (1287774).

Almost surely, 2^12801135 is an apocalyptic number.

12801135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12801135 is a deficient number, since it is larger than the sum of its proper divisors (7803249).

12801135 is a wasteful number, since it uses less digits than its factorization.

12801135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5114.

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 12801135 is about 3577.8673815557. The cubic root of 12801135 is about 233.9283329363.

Adding to 12801135 its reverse (53110821), we get a palindrome (65911956).

It can be divided in two parts, 1280 and 1135, that added together give a triangular number (2415 = T₆₉).

The spelling of 12801135 in words is "twelve million, eight hundred one thousand, one hundred thirty-five".