12081469 has 4 divisors (see below), whose sum is σ = 12105180. Its totient is φ = 12057760.

The previous prime is 12081457. The next prime is 12081479. The reversal of 12081469 is 96418021.

It is a happy number.

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 4995225 + 7086244 = 2235^2 + 2662^2 .

It is a cyclic number.

It is not a de Polignac number, because 12081469 - 2¹³ = 12073277 is a prime.

It is a super-2 number, since 2×12081469² = 291923786395922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12081469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12081439) 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 3 ways as a sum of consecutive naturals, for example, 11074 + ... + 12115.

It is an arithmetic number, because the mean of its divisors is an integer number (3026295).

Almost surely, 2^12081469 is an apocalyptic number.

It is an amenable number.

12081469 is a deficient number, since it is larger than the sum of its proper divisors (23711).

12081469 is an equidigital number, since it uses as much as digits as its factorization.

12081469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23710.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12081469 is about 3475.8407616000. The cubic root of 12081469 is about 229.4597844549.

The spelling of 12081469 in words is "twelve million, eighty-one thousand, four hundred sixty-nine".