12799081 has 4 divisors (see below), whose sum is σ = 13008964. Its totient is φ = 12589200.

The previous prime is 12799067. The next prime is 12799091. The reversal of 12799081 is 18099721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1849600 + 10949481 = 1360^2 + 3309^2 .

It is a cyclic number.

It is not a de Polignac number, because 12799081 - 2¹³ = 12790889 is a prime.

It is a super-2 number, since 2×12799081² = 327632948889122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12799081.

It is not an unprimeable number, because it can be changed into a prime (12799021) 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, 104850 + ... + 104971.

It is an arithmetic number, because the mean of its divisors is an integer number (3252241).

Almost surely, 2^12799081 is an apocalyptic number.

It is an amenable number.

12799081 is a deficient number, since it is larger than the sum of its proper divisors (209883).

12799081 is an equidigital number, since it uses as much as digits as its factorization.

12799081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209882.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 12799081 is about 3577.5803275398. The cubic root of 12799081 is about 233.9158206474.

The spelling of 12799081 in words is "twelve million, seven hundred ninety-nine thousand, eighty-one".