225189646 has 8 divisors (see below), whose sum is σ = 368492184. Its totient is φ = 102358920.

The previous prime is 225189641. The next prime is 225189649. The reversal of 225189646 is 646981522.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225189641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5117925 + ... + 5117968.

It is an arithmetic number, because the mean of its divisors is an integer number (46061523).

Almost surely, 2^225189646 is an apocalyptic number.

225189646 is a deficient number, since it is larger than the sum of its proper divisors (143302538).

225189646 is a wasteful number, since it uses less digits than its factorization.

225189646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10235906.

The product of its digits is 207360, while the sum is 43.

The square root of 225189646 is about 15006.3202018350. The cubic root of 225189646 is about 608.3910353140.

The spelling of 225189646 in words is "two hundred twenty-five million, one hundred eighty-nine thousand, six hundred forty-six".