224145545 has 12 divisors (see below), whose sum is σ = 291257676. Its totient is φ = 165522240.

The previous prime is 224145539. The next prime is 224145569. The reversal of 224145545 is 545541422.

It can be written as a sum of positive squares in 6 ways, for example, as 1449616 + 222695929 = 1204^2 + 14923^2 .

It is not a de Polignac number, because 224145545 - 2¹⁰ = 224144521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131786 + ... + 133475.

It is an arithmetic number, because the mean of its divisors is an integer number (24271473).

Almost surely, 2^224145545 is an apocalyptic number.

It is an amenable number.

224145545 is a deficient number, since it is larger than the sum of its proper divisors (67112131).

224145545 is a wasteful number, since it uses less digits than its factorization.

224145545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265292 (or 265279 counting only the distinct ones).

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

The square root of 224145545 is about 14971.4910747060. The cubic root of 224145545 is about 607.4493017128.

Adding to 224145545 its reverse (545541422), we get a palindrome (769686967).

The spelling of 224145545 in words is "two hundred twenty-four million, one hundred forty-five thousand, five hundred forty-five".