12166469 has 4 divisors (see below), whose sum is σ = 13904544. Its totient is φ = 10428396.

The previous prime is 12166459. The next prime is 12166481. The reversal of 12166469 is 96466121.

12166469 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12166469 - 2¹² = 12162373 is a prime.

It is a super-2 number, since 2×12166469² = 296045935855922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12166439) 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, 869027 + ... + 869040.

It is an arithmetic number, because the mean of its divisors is an integer number (3476136).

Almost surely, 2^12166469 is an apocalyptic number.

It is an amenable number.

12166469 is a deficient number, since it is larger than the sum of its proper divisors (1738075).

12166469 is an equidigital number, since it uses as much as digits as its factorization.

12166469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738074.

The product of its digits is 15552, while the sum is 35.

The square root of 12166469 is about 3488.0465879916. The cubic root of 12166469 is about 229.9966540156.

The spelling of 12166469 in words is "twelve million, one hundred sixty-six thousand, four hundred sixty-nine".