225144545 has 16 divisors (see below), whose sum is σ = 280393920. Its totient is φ = 173342400.

The previous prime is 225144533. The next prime is 225144559. The reversal of 225144545 is 545441522.

It is not a de Polignac number, because 225144545 - 2¹⁶ = 225079009 is a prime.

It is a super-2 number, since 2×225144545² = 101380132286514050, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 45650 + ... + 50340.

It is an arithmetic number, because the mean of its divisors is an integer number (17524620).

Almost surely, 2^225144545 is an apocalyptic number.

It is an amenable number.

225144545 is a deficient number, since it is larger than the sum of its proper divisors (55249375).

225144545 is a wasteful number, since it uses less digits than its factorization.

225144545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5056.

The product of its digits is 32000, while the sum is 32.

The square root of 225144545 is about 15004.8173930908. The cubic root of 225144545 is about 608.3504164007.

The spelling of 225144545 in words is "two hundred twenty-five million, one hundred forty-four thousand, five hundred forty-five".