225485186 has 8 divisors (see below), whose sum is σ = 338291580. Its totient is φ = 112721328.

The previous prime is 225485173. The next prime is 225485209. The reversal of 225485186 is 681584522.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 209236225 + 16248961 = 14465^2 + 4031^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14540 + ... + 25736.

Almost surely, 2^225485186 is an apocalyptic number.

225485186 is a deficient number, since it is larger than the sum of its proper divisors (112806394).

225485186 is a wasteful number, since it uses less digits than its factorization.

225485186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21268.

The product of its digits is 153600, while the sum is 41.

The square root of 225485186 is about 15016.1641573339. The cubic root of 225485186 is about 608.6570707624.

The spelling of 225485186 in words is "two hundred twenty-five million, four hundred eighty-five thousand, one hundred eighty-six".