12275816 has 32 divisors (see below), whose sum is σ = 27216000. Its totient is φ = 5078976.

The previous prime is 12275779. The next prime is 12275827. The reversal of 12275816 is 61857221.

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 7 ways as a sum of consecutive naturals, for example, 2156 + ... + 5403.

It is an arithmetic number, because the mean of its divisors is an integer number (850500).

Almost surely, 2^12275816 is an apocalyptic number.

It is an amenable number.

12275816 is an abundant number, since it is smaller than the sum of its proper divisors (14940184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12275816 is a wasteful number, since it uses less digits than its factorization.

12275816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7601 (or 7597 counting only the distinct ones).

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

The square root of 12275816 is about 3503.6860589956. The cubic root of 12275816 is about 230.6836370658.

The spelling of 12275816 in words is "twelve million, two hundred seventy-five thousand, eight hundred sixteen".