12276345 has 16 divisors (see below), whose sum is σ = 19766592. Its totient is φ = 6505920.

The previous prime is 12276331. The next prime is 12276359. The reversal of 12276345 is 54367221.

It is an interprime number because it is at equal distance from previous prime (12276331) and next prime (12276359).

It is not a de Polignac number, because 12276345 - 2¹⁰ = 12275321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66 + ... + 4955.

It is an arithmetic number, because the mean of its divisors is an integer number (1235412).

Almost surely, 2^12276345 is an apocalyptic number.

12276345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12276345 is a deficient number, since it is larger than the sum of its proper divisors (7490247).

12276345 is a wasteful number, since it uses less digits than its factorization.

12276345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5192.

The product of its digits is 10080, while the sum is 30.

The square root of 12276345 is about 3503.7615501058. The cubic root of 12276345 is about 230.6869506240.

It can be divided in two parts, 12276 and 345, that added together give a palindrome (12621).

The spelling of 12276345 in words is "twelve million, two hundred seventy-six thousand, three hundred forty-five".