12705292 has 12 divisors (see below), whose sum is σ = 23201136. Its totient is φ = 6076400.

The previous prime is 12705289. The next prime is 12705311. The reversal of 12705292 is 29250721.

It is a super-2 number, since 2×12705292² = 322848889610528, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12705292.

It is an unprimeable number.

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, 68959 + ... + 69142.

It is an arithmetic number, because the mean of its divisors is an integer number (1933428).

Almost surely, 2^12705292 is an apocalyptic number.

It is an amenable number.

12705292 is a deficient number, since it is larger than the sum of its proper divisors (10495844).

12705292 is a wasteful number, since it uses less digits than its factorization.

12705292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138128 (or 138126 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 12705292 is about 3564.4483444146. The cubic root of 12705292 is about 233.3430571911.

The spelling of 12705292 in words is "twelve million, seven hundred five thousand, two hundred ninety-two".