225399239 has 4 divisors (see below), whose sum is σ = 242737656. Its totient is φ = 208060824.

The previous prime is 225399221. The next prime is 225399269. The reversal of 225399239 is 932993522.

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

It is a cyclic number.

It is not a de Polignac number, because 225399239 - 2¹² = 225395143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 225399239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (225399269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8669189 + ... + 8669214.

It is an arithmetic number, because the mean of its divisors is an integer number (60684414).

Almost surely, 2^225399239 is an apocalyptic number.

225399239 is a deficient number, since it is larger than the sum of its proper divisors (17338417).

225399239 is a wasteful number, since it uses less digits than its factorization.

225399239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17338416.

The product of its digits is 262440, while the sum is 44.

The square root of 225399239 is about 15013.3020684991. The cubic root of 225399239 is about 608.5797280655.

The spelling of 225399239 in words is "two hundred twenty-five million, three hundred ninety-nine thousand, two hundred thirty-nine".