12798145 has 8 divisors (see below), whose sum is σ = 15414120. Its totient is φ = 10200960.

The previous prime is 12798131. The next prime is 12798151. The reversal of 12798145 is 54189721.

It can be written as a sum of positive squares in 4 ways, for example, as 456976 + 12341169 = 676^2 + 3513^2 .

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

It is not a de Polignac number, because 12798145 - 2⁵ = 12798113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3150 + ... + 5959.

It is an arithmetic number, because the mean of its divisors is an integer number (1926765).

Almost surely, 2^12798145 is an apocalyptic number.

It is an amenable number.

12798145 is a deficient number, since it is larger than the sum of its proper divisors (2615975).

12798145 is an equidigital number, since it uses as much as digits as its factorization.

12798145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9395.

The product of its digits is 20160, while the sum is 37.

The square root of 12798145 is about 3577.4495104753. The cubic root of 12798145 is about 233.9101184009.

The spelling of 12798145 in words is "twelve million, seven hundred ninety-eight thousand, one hundred forty-five".