225831198 has 32 divisors (see below), whose sum is σ = 471435552. Its totient is φ = 72051200.

The previous prime is 225831197. The next prime is 225831299. The reversal of 225831198 is 891138522.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225831197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4378 + ... + 21698.

It is an arithmetic number, because the mean of its divisors is an integer number (14732361).

Almost surely, 2^225831198 is an apocalyptic number.

225831198 is an abundant number, since it is smaller than the sum of its proper divisors (245604354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

225831198 is a wasteful number, since it uses less digits than its factorization.

225831198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17420.

The product of its digits is 34560, while the sum is 39.

The square root of 225831198 is about 15027.6810586331. The cubic root of 225831198 is about 608.9682442236.

The spelling of 225831198 in words is "two hundred twenty-five million, eight hundred thirty-one thousand, one hundred ninety-eight".