12312506 has 8 divisors (see below), whose sum is σ = 18651924. Its totient is φ = 6095200.

The previous prime is 12312497. The next prime is 12312511. The reversal of 12312506 is 60521321.

It can be written as a sum of positive squares in 2 ways, for example, as 12145225 + 167281 = 3485^2 + 409^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30275 + ... + 30678.

Almost surely, 2^12312506 is an apocalyptic number.

12312506 is a deficient number, since it is larger than the sum of its proper divisors (6339418).

12312506 is a wasteful number, since it uses less digits than its factorization.

12312506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61056.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12312506 is about 3508.9180668690. The cubic root of 12312506 is about 230.9132311562.

Adding to 12312506 its reverse (60521321), we get a palindrome (72833827).

The spelling of 12312506 in words is "twelve million, three hundred twelve thousand, five hundred six".