225081238 has 16 divisors (see below), whose sum is σ = 350678160. Its totient is φ = 108220000.

The previous prime is 225081229. The next prime is 225081247. The reversal of 225081238 is 832180522.

225081238 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (225081229) and next prime (225081247).

It is a super-2 number, since 2×225081238² = 101323127399225288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6828 + ... + 22288.

It is an arithmetic number, because the mean of its divisors is an integer number (21917385).

Almost surely, 2^225081238 is an apocalyptic number.

225081238 is a deficient number, since it is larger than the sum of its proper divisors (125596922).

225081238 is a wasteful number, since it uses less digits than its factorization.

225081238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15743.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 225081238 is about 15002.7076889474. The cubic root of 225081238 is about 608.2933916271.

The spelling of 225081238 in words is "two hundred twenty-five million, eighty-one thousand, two hundred thirty-eight".