9165190225 has 27 divisors (see below), whose sum is σ = 11673785041. Its totient is φ = 7138001600.

The previous prime is 9165190217. The next prime is 9165190253. The reversal of 9165190225 is 5220915619.

The square root of 9165190225 is 95735.

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 3857776321 + 5307413904 = 62111^2 + 72852^2 .

It is not a de Polignac number, because 9165190225 - 2³ = 9165190217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 19625442 + ... + 19625908.

Almost surely, 2^9165190225 is an apocalyptic number.

9165190225 is the 95735-th square number.

9165190225 is the 47868-th centered octagonal number.

It is an amenable number.

9165190225 is a deficient number, since it is larger than the sum of its proper divisors (2508594816).

9165190225 is an frugal number, since it uses more digits than its factorization.

9165190225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1026 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 40.

The cubic root of 9165190225 is about 2092.7330243743.

The spelling of 9165190225 in words is "nine billion, one hundred sixty-five million, one hundred ninety thousand, two hundred twenty-five".