12899165 has 8 divisors (see below), whose sum is σ = 15501240. Its totient is φ = 10304512.

The previous prime is 12899153. The next prime is 12899167. The reversal of 12899165 is 56199821.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 466489 + 12432676 = 683^2 + 3526^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12899165 - 2⁴ = 12899149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12899167) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3257 + ... + 6033.

It is an arithmetic number, because the mean of its divisors is an integer number (1937655).

Almost surely, 2^12899165 is an apocalyptic number.

It is an amenable number.

12899165 is a deficient number, since it is larger than the sum of its proper divisors (2602075).

12899165 is an equidigital number, since it uses as much as digits as its factorization.

12899165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3711.

The product of its digits is 38880, while the sum is 41.

The square root of 12899165 is about 3591.5407557203. The cubic root of 12899165 is about 234.5239495273.

The spelling of 12899165 in words is "twelve million, eight hundred ninety-nine thousand, one hundred sixty-five".