225165243 has 8 divisors (see below), whose sum is σ = 307202368. Its totient is φ = 146619144.

The previous prime is 225165233. The next prime is 225165263. The reversal of 225165243 is 342561522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 225165243 - 2⁶ = 225165179 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 225165243.

It is not an unprimeable number, because it can be changed into a prime (225165233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872605 + ... + 872862.

It is an arithmetic number, because the mean of its divisors is an integer number (38400296).

Almost surely, 2^225165243 is an apocalyptic number.

225165243 is a deficient number, since it is larger than the sum of its proper divisors (82037125).

225165243 is a wasteful number, since it uses less digits than its factorization.

225165243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745513.

The product of its digits is 14400, while the sum is 30.

The square root of 225165243 is about 15005.5070890657. The cubic root of 225165243 is about 608.3690581301.

The spelling of 225165243 in words is "two hundred twenty-five million, one hundred sixty-five thousand, two hundred forty-three".