12423015 has 24 divisors (see below), whose sum is σ = 23491728. Its totient is φ = 6023040.

The previous prime is 12423011. The next prime is 12423031. The reversal of 12423015 is 51032421.

It is not a de Polignac number, because 12423015 - 2² = 12423011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12054 + ... + 13043.

It is an arithmetic number, because the mean of its divisors is an integer number (978822).

Almost surely, 2^12423015 is an apocalyptic number.

12423015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12423015 is a deficient number, since it is larger than the sum of its proper divisors (11068713).

12423015 is a wasteful number, since it uses less digits than its factorization.

12423015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25119 (or 25116 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 12423015 is about 3524.6297677912. The cubic root of 12423015 is about 231.6020165914.

Adding to 12423015 its reverse (51032421), we get a palindrome (63455436).

The spelling of 12423015 in words is "twelve million, four hundred twenty-three thousand, fifteen".