225412 has 24 divisors (see below), whose sum is σ = 443520. Its totient is φ = 99360.

The previous prime is 225383. The next prime is 225427. The reversal of 225412 is 214522.

It is a nialpdrome in base 12.

It is an unprimeable number.

225412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2014 + ... + 2122.

It is an arithmetic number, because the mean of its divisors is an integer number (18480).

2²²⁵⁴¹² is an apocalyptic number.

225412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

225412 is a deficient number, since it is larger than the sum of its proper divisors (218108).

225412 is a wasteful number, since it uses less digits than its factorization.

225412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 169 counting only the distinct ones).

The product of its digits is 160, while the sum is 16.

The square root of 225412 is about 474.7757365325. The cubic root of 225412 is about 60.8591212782.

Adding to 225412 its reverse (214522), we get a palindrome (439934).

The spelling of 225412 in words is "two hundred twenty-five thousand, four hundred twelve".