12208761 has 12 divisors (see below), whose sum is σ = 18204160. Its totient is φ = 7876440.

The previous prime is 12208751. The next prime is 12208769. The reversal of 12208761 is 16780221.

It is not a de Polignac number, because 12208761 - 2¹¹ = 12206713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12208769) 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 11 ways as a sum of consecutive naturals, for example, 21601 + ... + 22158.

Almost surely, 2^12208761 is an apocalyptic number.

It is an amenable number.

12208761 is a deficient number, since it is larger than the sum of its proper divisors (5995399).

12208761 is a wasteful number, since it uses less digits than its factorization.

12208761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43796 (or 43793 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 12208761 is about 3494.1037477442. The cubic root of 12208761 is about 230.2628438053.

Adding to 12208761 its reverse (16780221), we get a palindrome (28988982).

The spelling of 12208761 in words is "twelve million, two hundred eight thousand, seven hundred sixty-one".