12276661 has 8 divisors (see below), whose sum is σ = 12549600. Its totient is φ = 12006000.

The previous prime is 12276643. The next prime is 12276683. The reversal of 12276661 is 16667221.

It is a happy number.

12276661 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12276661 - 2¹³ = 12268469 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12276631) 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, 14395 + ... + 15223.

It is an arithmetic number, because the mean of its divisors is an integer number (1568700).

Almost surely, 2^12276661 is an apocalyptic number.

It is an amenable number.

12276661 is a deficient number, since it is larger than the sum of its proper divisors (272939).

12276661 is an equidigital number, since it uses as much as digits as its factorization.

12276661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139.

The product of its digits is 6048, while the sum is 31.

The square root of 12276661 is about 3503.8066442086. The cubic root of 12276661 is about 230.6889299441.

The spelling of 12276661 in words is "twelve million, two hundred seventy-six thousand, six hundred sixty-one".