12424999 has 4 divisors (see below), whose sum is σ = 12447864. Its totient is φ = 12402136.

The previous prime is 12424969. The next prime is 12425027. The reversal of 12424999 is 99942421.

12424999 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 12424999 - 2⁹ = 12424487 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 (12424969) 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, 10597 + ... + 11710.

It is an arithmetic number, because the mean of its divisors is an integer number (3111966).

Almost surely, 2^12424999 is an apocalyptic number.

12424999 is a deficient number, since it is larger than the sum of its proper divisors (22865).

12424999 is an equidigital number, since it uses as much as digits as its factorization.

12424999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22864.

The product of its digits is 46656, while the sum is 40.

The square root of 12424999 is about 3524.9112045554. The cubic root of 12424999 is about 231.6143451590.

It can be divided in two parts, 1242 and 4999, that added together give a square (6241 = 79²).

The spelling of 12424999 in words is "twelve million, four hundred twenty-four thousand, nine hundred ninety-nine".