12469481 has 4 divisors (see below), whose sum is σ = 12806532. Its totient is φ = 12132432.

The previous prime is 12469433. The next prime is 12469493. The reversal of 12469481 is 18496421.

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 5683456 + 6786025 = 2384^2 + 2605^2 .

It is a cyclic number.

It is not a de Polignac number, because 12469481 - 2⁶ = 12469417 is a prime.

It is a super-2 number, since 2×12469481² = 310975912818722, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (12469081) 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, 168470 + ... + 168543.

It is an arithmetic number, because the mean of its divisors is an integer number (3201633).

Almost surely, 2^12469481 is an apocalyptic number.

It is an amenable number.

12469481 is a deficient number, since it is larger than the sum of its proper divisors (337051).

12469481 is an equidigital number, since it uses as much as digits as its factorization.

12469481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337050.

The product of its digits is 13824, while the sum is 35.

The square root of 12469481 is about 3531.2152299173. The cubic root of 12469481 is about 231.8904122245.

The spelling of 12469481 in words is "twelve million, four hundred sixty-nine thousand, four hundred eighty-one".