224021253 has 8 divisors (see below), whose sum is σ = 305980416. Its totient is φ = 145704800.

The previous prime is 224021251. The next prime is 224021263. The reversal of 224021253 is 352120422.

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 224021253 - 2¹ = 224021251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (224021251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 910533 + ... + 910778.

It is an arithmetic number, because the mean of its divisors is an integer number (38247552).

Almost surely, 2^224021253 is an apocalyptic number.

It is an amenable number.

224021253 is a deficient number, since it is larger than the sum of its proper divisors (81959163).

224021253 is a wasteful number, since it uses less digits than its factorization.

224021253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821355.

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

The square root of 224021253 is about 14967.3395431519. The cubic root of 224021253 is about 607.3370010967.

Adding to 224021253 its reverse (352120422), we get a palindrome (576141675).

The spelling of 224021253 in words is "two hundred twenty-four million, twenty-one thousand, two hundred fifty-three".