12765215 has 16 divisors (see below), whose sum is σ = 16433280. Its totient is φ = 9484800.

The previous prime is 12765187. The next prime is 12765241. The reversal of 12765215 is 51256721.

It is not a de Polignac number, because 12765215 - 2¹⁶ = 12699679 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5765 + ... + 7665.

It is an arithmetic number, because the mean of its divisors is an integer number (1027080).

Almost surely, 2^12765215 is an apocalyptic number.

12765215 is a deficient number, since it is larger than the sum of its proper divisors (3668065).

12765215 is a wasteful number, since it uses less digits than its factorization.

12765215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002.

The product of its digits is 4200, while the sum is 29.

The square root of 12765215 is about 3572.8441051913. The cubic root of 12765215 is about 233.7093269047.

The spelling of 12765215 in words is "twelve million, seven hundred sixty-five thousand, two hundred fifteen".