12261606 has 32 divisors (see below), whose sum is σ = 28995840. Its totient is φ = 3382176.

The previous prime is 12261581. The next prime is 12261611. The reversal of 12261606 is 60616221.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3816 + ... + 6251.

It is an arithmetic number, because the mean of its divisors is an integer number (906120).

Almost surely, 2^12261606 is an apocalyptic number.

12261606 is an abundant number, since it is smaller than the sum of its proper divisors (16734234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12261606 is a wasteful number, since it uses less digits than its factorization.

12261606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10108.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 12261606 is about 3501.6576074768. The cubic root of 12261606 is about 230.5945926083.

Adding to 12261606 its reverse (60616221), we get a palindrome (72877827).

The spelling of 12261606 in words is "twelve million, two hundred sixty-one thousand, six hundred six".