225842 has 4 divisors (see below), whose sum is σ = 338766. Its totient is φ = 112920.

The previous prime is 225839. The next prime is 225859. The reversal of 225842 is 248522.

225842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 116281 + 109561 = 341^2 + 331^2 .

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225842.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56459 + ... + 56462.

2²²⁵⁸⁴² is an apocalyptic number.

225842 is a deficient number, since it is larger than the sum of its proper divisors (112924).

225842 is a wasteful number, since it uses less digits than its factorization.

225842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112923.

The product of its digits is 1280, while the sum is 23.

The square root of 225842 is about 475.2283661567. The cubic root of 225842 is about 60.8977953496.

The spelling of 225842 in words is "two hundred twenty-five thousand, eight hundred forty-two".