12715215 has 8 divisors (see below), whose sum is σ = 20344368. Its totient is φ = 6781440.

The previous prime is 12715211. The next prime is 12715249. The reversal of 12715215 is 51251721.

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

It is not a de Polignac number, because 12715215 - 2² = 12715211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12715211) 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, 423826 + ... + 423855.

It is an arithmetic number, because the mean of its divisors is an integer number (2543046).

Almost surely, 2^12715215 is an apocalyptic number.

12715215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12715215 is a deficient number, since it is larger than the sum of its proper divisors (7629153).

12715215 is an equidigital number, since it uses as much as digits as its factorization.

12715215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847689.

The product of its digits is 700, while the sum is 24.

The square root of 12715215 is about 3565.8400132367. The cubic root of 12715215 is about 233.4037893809.

Adding to 12715215 its reverse (51251721), we get a palindrome (63966936).

The spelling of 12715215 in words is "twelve million, seven hundred fifteen thousand, two hundred fifteen".