225188834 has 16 divisors (see below), whose sum is σ = 385165368. Its totient is φ = 97819392.

The previous prime is 225188833. The next prime is 225188903. The reversal of 225188834 is 438881522.

It can be written as a sum of positive squares in 4 ways, for example, as 172843609 + 52345225 = 13147^2 + 7235^2 .

It is a junction number, because it is equal to n+sod(n) for n = 225188791 and 225188800.

It is not an unprimeable number, because it can be changed into a prime (225188833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254297 + ... + 255180.

Almost surely, 2^225188834 is an apocalyptic number.

225188834 is a deficient number, since it is larger than the sum of its proper divisors (159976534).

225188834 is a wasteful number, since it uses less digits than its factorization.

225188834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509509.

The product of its digits is 122880, while the sum is 41.

The square root of 225188834 is about 15006.2931465436. The cubic root of 225188834 is about 608.3903040575.

The spelling of 225188834 in words is "two hundred twenty-five million, one hundred eighty-eight thousand, eight hundred thirty-four".