8123303225 has 18 divisors (see below), whose sum is σ = 10630962990. Its totient is φ = 6156601920.

The previous prime is 8123303189. The next prime is 8123303257. The reversal of 8123303225 is 5223033218.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 952092736 + 7171210489 = 30856^2 + 84683^2 .

It is not a de Polignac number, because 8123303225 - 2⁸ = 8123302969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 441020 + ... + 459069.

It is an arithmetic number, because the mean of its divisors is an integer number (590609055).

Almost surely, 2^8123303225 is an apocalyptic number.

It is an amenable number.

8123303225 is a deficient number, since it is larger than the sum of its proper divisors (2507659765).

8123303225 is a wasteful number, since it uses less digits than its factorization.

8123303225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900137 (or 900113 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 8123303225 is about 90129.3693809071. The cubic root of 8123303225 is about 2010.2229256143. Note that the first 3 decimals are identical.

The spelling of 8123303225 in words is "eight billion, one hundred twenty-three million, three hundred three thousand, two hundred twenty-five".