223445247 has 8 divisors (see below), whose sum is σ = 298037760. Its totient is φ = 148908120.

The previous prime is 223445231. The next prime is 223445251. The reversal of 223445247 is 742544322.

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

It is not a de Polignac number, because 223445247 - 2⁴ = 223445231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223445227) 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, 3279 + ... + 21392.

It is an arithmetic number, because the mean of its divisors is an integer number (37254720).

Almost surely, 2^223445247 is an apocalyptic number.

223445247 is a deficient number, since it is larger than the sum of its proper divisors (74592513).

223445247 is a wasteful number, since it uses less digits than its factorization.

223445247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27693.

The product of its digits is 53760, while the sum is 33.

The square root of 223445247 is about 14948.0850613047. The cubic root of 223445247 is about 606.8160237196.

Adding to 223445247 its reverse (742544322), we get a palindrome (965989569).

The spelling of 223445247 in words is "two hundred twenty-three million, four hundred forty-five thousand, two hundred forty-seven".