225135 has 12 divisors (see below), whose sum is σ = 390312. Its totient is φ = 120048.

The previous prime is 225133. The next prime is 225143. The reversal of 225135 is 531522.

It is a happy number.

It is not a de Polignac number, because 225135 - 2¹ = 225133 is a prime.

225135 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2457 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (32526).

2²²⁵¹³⁵ is an apocalyptic number.

225135 is a deficient number, since it is larger than the sum of its proper divisors (165177).

225135 is a wasteful number, since it uses less digits than its factorization.

225135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5014 (or 5011 counting only the distinct ones).

The product of its digits is 300, while the sum is 18.

The square root of 225135 is about 474.4839301810. The cubic root of 225135 is about 60.8341819277.

Adding to 225135 its reverse (531522), we get a palindrome (756657).

The spelling of 225135 in words is "two hundred twenty-five thousand, one hundred thirty-five".