225032145 has 32 divisors (see below), whose sum is σ = 410562432. Its totient is φ = 104266752.

The previous prime is 225032089. The next prime is 225032147. The reversal of 225032145 is 541230522.

It is not a de Polignac number, because 225032145 - 2¹⁵ = 224999377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (225032147) 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 31 ways as a sum of consecutive naturals, for example, 30627 + ... + 37256.

It is an arithmetic number, because the mean of its divisors is an integer number (12830076).

Almost surely, 2^225032145 is an apocalyptic number.

It is an amenable number.

225032145 is a deficient number, since it is larger than the sum of its proper divisors (185530287).

225032145 is a wasteful number, since it uses less digits than its factorization.

225032145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67921.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 225032145 is about 15001.0714617323. The cubic root of 225032145 is about 608.2491629756.

Adding to 225032145 its reverse (541230522), we get a palindrome (766262667).

The spelling of 225032145 in words is "two hundred twenty-five million, thirty-two thousand, one hundred forty-five".