12705268 has 12 divisors (see below), whose sum is σ = 22431780. Its totient is φ = 6296192.

The previous prime is 12705229. The next prime is 12705271. The reversal of 12705268 is 86250721.

It can be written as a sum of positive squares in 2 ways, for example, as 116964 + 12588304 = 342^2 + 3548^2 .

It is a super-2 number, since 2×12705268² = 322847669903648, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13603 + ... + 14506.

It is an arithmetic number, because the mean of its divisors is an integer number (1869315).

Almost surely, 2^12705268 is an apocalyptic number.

It is an amenable number.

12705268 is a deficient number, since it is larger than the sum of its proper divisors (9726512).

12705268 is a wasteful number, since it uses less digits than its factorization.

12705268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28226 (or 28224 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 12705268 is about 3564.4449778332. Note that the first 3 decimals coincide. The cubic root of 12705268 is about 233.3429102645.

Adding to 12705268 its reverse (86250721), we get a palindrome (98955989).

The spelling of 12705268 in words is "twelve million, seven hundred five thousand, two hundred sixty-eight".