12276565 has 16 divisors (see below), whose sum is σ = 17723520. Its totient is φ = 7974720.

The previous prime is 12276559. The next prime is 12276569. The reversal of 12276565 is 56567221.

It is not a de Polignac number, because 12276565 - 2¹¹ = 12274517 is a prime.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 12276565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12276569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8566 + ... + 9895.

It is an arithmetic number, because the mean of its divisors is an integer number (1107720).

Almost surely, 2^12276565 is an apocalyptic number.

It is an amenable number.

12276565 is a deficient number, since it is larger than the sum of its proper divisors (5446955).

12276565 is a wasteful number, since it uses less digits than its factorization.

12276565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18492.

The product of its digits is 25200, while the sum is 34.

The square root of 12276565 is about 3503.7929447957. The cubic root of 12276565 is about 230.6883286353.

The spelling of 12276565 in words is "twelve million, two hundred seventy-six thousand, five hundred sixty-five".