12802105 has 16 divisors (see below), whose sum is σ = 17124480. Its totient is φ = 9130752.

The previous prime is 12802091. The next prime is 12802117. The reversal of 12802105 is 50120821.

It is a cyclic number.

It is not a de Polignac number, because 12802105 - 2⁵ = 12802073 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2349 + ... + 5578.

It is an arithmetic number, because the mean of its divisors is an integer number (1070280).

Almost surely, 2^12802105 is an apocalyptic number.

It is an amenable number.

12802105 is a deficient number, since it is larger than the sum of its proper divisors (4322375).

12802105 is a wasteful number, since it uses less digits than its factorization.

12802105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7968.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 12802105 is about 3578.0029345991. The cubic root of 12802105 is about 233.9342413903.

Adding to 12802105 its reverse (50120821), we get a palindrome (62922926).

The spelling of 12802105 in words is "twelve million, eight hundred two thousand, one hundred five".