12166829 has 4 divisors (see below), whose sum is σ = 12181884. Its totient is φ = 12151776.

The previous prime is 12166813. The next prime is 12166841. The reversal of 12166829 is 92866121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11744329 + 422500 = 3427^2 + 650^2 .

It is a cyclic number.

It is not a de Polignac number, because 12166829 - 2⁴ = 12166813 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 (12166879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6242 + ... + 7955.

It is an arithmetic number, because the mean of its divisors is an integer number (3045471).

Almost surely, 2^12166829 is an apocalyptic number.

It is an amenable number.

12166829 is a deficient number, since it is larger than the sum of its proper divisors (15055).

12166829 is an equidigital number, since it uses as much as digits as its factorization.

12166829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15054.

The product of its digits is 10368, while the sum is 35.

The square root of 12166829 is about 3488.0981924252. The cubic root of 12166829 is about 229.9989224902.

The spelling of 12166829 in words is "twelve million, one hundred sixty-six thousand, eight hundred twenty-nine".