12523406 has 32 divisors (see below), whose sum is σ = 22353408. Its totient is φ = 5150880.

The previous prime is 12523393. The next prime is 12523417. The reversal of 12523406 is 60432521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42596 + ... + 42888.

It is an arithmetic number, because the mean of its divisors is an integer number (698544).

Almost surely, 2^12523406 is an apocalyptic number.

12523406 is a deficient number, since it is larger than the sum of its proper divisors (9830002).

12523406 is a wasteful number, since it uses less digits than its factorization.

12523406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 12523406 is about 3538.8424661180. The cubic root of 12523406 is about 232.2242060664.

Adding to 12523406 its reverse (60432521), we get a palindrome (72955927).

The spelling of 12523406 in words is "twelve million, five hundred twenty-three thousand, four hundred six".