12947026225 has 27 divisors (see below), whose sum is σ = 18681171051. Its totient is φ = 8875230000.

The previous prime is 12947026223. The next prime is 12947026229. The reversal of 12947026225 is 52262074921.

The square root of 12947026225 is 113785.

It is a perfect power (a square), and thus also a powerful number.

12947026225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4660929441 + 8286096784 = 68271^2 + 91028^2 .

It is not a de Polignac number, because 12947026225 - 2¹ = 12947026223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12947026223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3980850 + ... + 3984100.

Almost surely, 2^12947026225 is an apocalyptic number.

12947026225 is the 113785-th square number.

12947026225 is the 56893-rd centered octagonal number.

It is an amenable number.

12947026225 is a deficient number, since it is larger than the sum of its proper divisors (5734144826).

12947026225 is an frugal number, since it uses more digits than its factorization.

12947026225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6526 (or 3263 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 12947026225 in words is "twelve billion, nine hundred forty-seven million, twenty-six thousand, two hundred twenty-five".