225237 has 4 divisors (see below), whose sum is σ = 300320. Its totient is φ = 150156.

The previous prime is 225227. The next prime is 225241. The reversal of 225237 is 732522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 225237 - 2⁴ = 225221 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225237.

It is not an unprimeable number, because it can be changed into a prime (225217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37537 + ... + 37542.

It is an arithmetic number, because the mean of its divisors is an integer number (75080).

2²²⁵²³⁷ is an apocalyptic number.

It is an amenable number.

225237 is a deficient number, since it is larger than the sum of its proper divisors (75083).

225237 is an equidigital number, since it uses as much as digits as its factorization.

225237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75082.

The product of its digits is 840, while the sum is 21.

The square root of 225237 is about 474.5914032091. The cubic root of 225237 is about 60.8433677490.

Adding to 225237 its reverse (732522), we get a palindrome (957759).

The spelling of 225237 in words is "two hundred twenty-five thousand, two hundred thirty-seven".