224253021 has 8 divisors (see below), whose sum is σ = 299505600. Its totient is φ = 149251232.

The previous prime is 224252927. The next prime is 224253023. The reversal of 224253021 is 120352422.

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

It is a cyclic number.

It is not a de Polignac number, because 224253021 - 2¹⁰ = 224251997 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224253023) 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 7 ways as a sum of consecutive naturals, for example, 60600 + ... + 64193.

It is an arithmetic number, because the mean of its divisors is an integer number (37438200).

Almost surely, 2^224253021 is an apocalyptic number.

It is an amenable number.

224253021 is a deficient number, since it is larger than the sum of its proper divisors (75252579).

224253021 is a wasteful number, since it uses less digits than its factorization.

224253021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125395.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 224253021 is about 14975.0799997863. The cubic root of 224253021 is about 607.5463752299.

The spelling of 224253021 in words is "two hundred twenty-four million, two hundred fifty-three thousand, twenty-one".