12663461 has 4 divisors (see below), whose sum is σ = 12689952. Its totient is φ = 12636972.

The previous prime is 12663451. The next prime is 12663467. The reversal of 12663461 is 16436621.

It is a happy number.

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 12663461 - 2⁶ = 12663397 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 (12663467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12515 + ... + 13488.

It is an arithmetic number, because the mean of its divisors is an integer number (3172488).

Almost surely, 2^12663461 is an apocalyptic number.

It is an amenable number.

12663461 is a deficient number, since it is larger than the sum of its proper divisors (26491).

12663461 is an equidigital number, since it uses as much as digits as its factorization.

12663461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26490.

The product of its digits is 5184, while the sum is 29.

The square root of 12663461 is about 3558.5756982253. The cubic root of 12663461 is about 233.0866888099.

The spelling of 12663461 in words is "twelve million, six hundred sixty-three thousand, four hundred sixty-one".