224431145 has 16 divisors (see below), whose sum is σ = 279216720. Its totient is φ = 172972800.

The previous prime is 224431121. The next prime is 224431153. The reversal of 224431145 is 541134422.

It can be written as a sum of positive squares in 8 ways, for example, as 1466521 + 222964624 = 1211^2 + 14932^2 .

It is not a de Polignac number, because 224431145 - 2²⁰ = 223382569 is a prime.

It is a super-2 number, since 2×224431145² = 100738677692022050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77015 + ... + 79875.

It is an arithmetic number, because the mean of its divisors is an integer number (17451045).

Almost surely, 2^224431145 is an apocalyptic number.

It is an amenable number.

224431145 is a deficient number, since it is larger than the sum of its proper divisors (54785575).

224431145 is a wasteful number, since it uses less digits than its factorization.

224431145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436.

The product of its digits is 3840, while the sum is 26.

The square root of 224431145 is about 14981.0261664547. The cubic root of 224431145 is about 607.7071905299.

Adding to 224431145 its reverse (541134422), we get a palindrome (765565567).

The spelling of 224431145 in words is "two hundred twenty-four million, four hundred thirty-one thousand, one hundred forty-five".