12276815 has 8 divisors (see below), whose sum is σ = 14754960. Its totient is φ = 9806272.

The previous prime is 12276811. The next prime is 12276821. The reversal of 12276815 is 51867221.

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

It is a cyclic number.

It is not a de Polignac number, because 12276815 - 2² = 12276811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12276811) 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, 2651 + ... + 5619.

It is an arithmetic number, because the mean of its divisors is an integer number (1844370).

Almost surely, 2^12276815 is an apocalyptic number.

12276815 is a deficient number, since it is larger than the sum of its proper divisors (2478145).

12276815 is an equidigital number, since it uses as much as digits as its factorization.

12276815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3801.

The product of its digits is 6720, while the sum is 32.

The square root of 12276815 is about 3503.8286202382. The cubic root of 12276815 is about 230.6898945372.

It can be divided in two parts, 1227 and 6815, that multiplied together give a triangular number (8362005 = T₄₀₈₉).

The spelling of 12276815 in words is "twelve million, two hundred seventy-six thousand, eight hundred fifteen".