9142228225 has 27 divisors (see below), whose sum is σ = 12283820649. Its totient is φ = 6746594400.

The previous prime is 9142228217. The next prime is 9142228229. The reversal of 9142228225 is 5228222419.

The square root of 9142228225 is 95615.

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

It can be written as a sum of positive squares in 4 ways, for example, as 2356422849 + 6785805376 = 48543^2 + 82376^2 .

It is not a de Polignac number, because 9142228225 - 2³ = 9142228217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9142228229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6214240 + ... + 6215710.

Almost surely, 2^9142228225 is an apocalyptic number.

9142228225 is the 95615-th square number.

9142228225 is the 47808-th centered octagonal number.

It is an amenable number.

9142228225 is a deficient number, since it is larger than the sum of its proper divisors (3141592424).

9142228225 is an equidigital number, since it uses as much as digits as its factorization.

9142228225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978 (or 1489 counting only the distinct ones).

The product of its digits is 46080, while the sum is 37.

The cubic root of 9142228225 is about 2090.9838873097.

The spelling of 9142228225 in words is "nine billion, one hundred forty-two million, two hundred twenty-eight thousand, two hundred twenty-five".