12512406 has 16 divisors (see below), whose sum is σ = 25832448. Its totient is φ = 4036200.

The previous prime is 12512389. The next prime is 12512407. The reversal of 12512406 is 60421521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33450 + ... + 33821.

It is an arithmetic number, because the mean of its divisors is an integer number (1614528).

Almost surely, 2^12512406 is an apocalyptic number.

12512406 is an abundant number, since it is smaller than the sum of its proper divisors (13320042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12512406 is a wasteful number, since it uses less digits than its factorization.

12512406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67307.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 12512406 is about 3537.2879441742. The cubic root of 12512406 is about 232.1561943625.

Adding to 12512406 its reverse (60421521), we get a palindrome (72933927).

The spelling of 12512406 in words is "twelve million, five hundred twelve thousand, four hundred six".