224120545 has 16 divisors (see below), whose sum is σ = 302860800. Its totient is φ = 157737600.

The previous prime is 224120543. The next prime is 224120549. The reversal of 224120545 is 545021422.

It is not a de Polignac number, because 224120545 - 2¹ = 224120543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (224120543) 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 15 ways as a sum of consecutive naturals, for example, 64020 + ... + 67429.

It is an arithmetic number, because the mean of its divisors is an integer number (18928800).

Almost surely, 2^224120545 is an apocalyptic number.

It is an amenable number.

224120545 is a deficient number, since it is larger than the sum of its proper divisors (78740255).

224120545 is a wasteful number, since it uses less digits than its factorization.

224120545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131496.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 224120545 is about 14970.6561312456. The cubic root of 224120545 is about 607.4267169868.

Adding to 224120545 its reverse (545021422), we get a palindrome (769141967).

The spelling of 224120545 in words is "two hundred twenty-four million, one hundred twenty thousand, five hundred forty-five".