224503145021 has 8 divisors (see below), whose sum is σ = 224715549240. Its totient is φ = 224290835968.

The previous prime is 224503144993. The next prime is 224503145051. The reversal of 224503145021 is 120541305422.

It can be written as a sum of positive squares in 4 ways, for example, as 12452104921 + 212051040100 = 111589^2 + 460490^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224503145021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224503145051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5231765 + ... + 5274501.

It is an arithmetic number, because the mean of its divisors is an integer number (28089443655).

Almost surely, 2^224503145021 is an apocalyptic number.

It is an amenable number.

224503145021 is a deficient number, since it is larger than the sum of its proper divisors (212404219).

224503145021 is a wasteful number, since it uses less digits than its factorization.

224503145021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47583.

The product of its (nonzero) digits is 9600, while the sum is 29.

The spelling of 224503145021 in words is "two hundred twenty-four billion, five hundred three million, one hundred forty-five thousand, twenty-one".