12868145 has 8 divisors (see below), whose sum is σ = 15461160. Its totient is φ = 10281600.

The previous prime is 12868123. The next prime is 12868147. The reversal of 12868145 is 54186821.

It can be written as a sum of positive squares in 4 ways, for example, as 279841 + 12588304 = 529^2 + 3548^2 .

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

It is not a de Polignac number, because 12868145 - 2¹⁶ = 12802609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12868147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6245 + ... + 8045.

It is an arithmetic number, because the mean of its divisors is an integer number (1932645).

Almost surely, 2^12868145 is an apocalyptic number.

It is an amenable number.

12868145 is a deficient number, since it is larger than the sum of its proper divisors (2593015).

12868145 is a wasteful number, since it uses less digits than its factorization.

12868145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3235.

The product of its digits is 15360, while the sum is 35.

The square root of 12868145 is about 3587.2196754590. The cubic root of 12868145 is about 234.3358036971.

The spelling of 12868145 in words is "twelve million, eight hundred sixty-eight thousand, one hundred forty-five".