12423205 has 8 divisors (see below), whose sum is σ = 15271704. Its totient is φ = 9696000.

The previous prime is 12423167. The next prime is 12423211. The reversal of 12423205 is 50232421.

It can be written as a sum of positive squares in 4 ways, for example, as 1340964 + 11082241 = 1158^2 + 3329^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12423205 - 2¹⁵ = 12390437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 30096 + ... + 30505.

It is an arithmetic number, because the mean of its divisors is an integer number (1908963).

Almost surely, 2^12423205 is an apocalyptic number.

It is an amenable number.

12423205 is a deficient number, since it is larger than the sum of its proper divisors (2848499).

12423205 is an equidigital number, since it uses as much as digits as its factorization.

12423205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60647.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12423205 is about 3524.6567208737. The cubic root of 12423205 is about 231.6031973074.

Adding to 12423205 its reverse (50232421), we get a palindrome (62655626).

The spelling of 12423205 in words is "twelve million, four hundred twenty-three thousand, two hundred five".