12284945 has 4 divisors (see below), whose sum is σ = 14741940. Its totient is φ = 9827952.

The previous prime is 12284941. The next prime is 12284947. The reversal of 12284945 is 54948221.

12284945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54948221 = 1319 ⋅41659.

It can be written as a sum of positive squares in 2 ways, for example, as 3182656 + 9102289 = 1784^2 + 3017^2 .

It is a cyclic number.

It is not a de Polignac number, because 12284945 - 2² = 12284941 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12284941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1228490 + ... + 1228499.

It is an arithmetic number, because the mean of its divisors is an integer number (3685485).

Almost surely, 2^12284945 is an apocalyptic number.

It is an amenable number.

12284945 is a deficient number, since it is larger than the sum of its proper divisors (2456995).

12284945 is an equidigital number, since it uses as much as digits as its factorization.

12284945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2456994.

The product of its digits is 23040, while the sum is 35.

The square root of 12284945 is about 3504.9885877132. The cubic root of 12284945 is about 230.7408060859.

The spelling of 12284945 in words is "twelve million, two hundred eighty-four thousand, nine hundred forty-five".