225112145 has 4 divisors (see below), whose sum is σ = 270134580. Its totient is φ = 180089712.

The previous prime is 225112127. The next prime is 225112157. The reversal of 225112145 is 541211522.

225112145 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, and also an emirpimes, since its reverse is a distinct semiprime: 541211522 = 2 ⋅270605761.

It can be written as a sum of positive squares in 2 ways, for example, as 171060241 + 54051904 = 13079^2 + 7352^2 .

It is a cyclic number.

It is not a de Polignac number, because 225112145 - 2¹⁰ = 225111121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 225112145.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22511210 + ... + 22511219.

It is an arithmetic number, because the mean of its divisors is an integer number (67533645).

Almost surely, 2^225112145 is an apocalyptic number.

It is an amenable number.

225112145 is a deficient number, since it is larger than the sum of its proper divisors (45022435).

225112145 is an equidigital number, since it uses as much as digits as its factorization.

225112145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45022434.

The product of its digits is 800, while the sum is 23.

The square root of 225112145 is about 15003.7377009864. The cubic root of 225112145 is about 608.3212329279.

Adding to 225112145 its reverse (541211522), we get a palindrome (766323667).

The spelling of 225112145 in words is "two hundred twenty-five million, one hundred twelve thousand, one hundred forty-five".