223443245 has 8 divisors (see below), whose sum is σ = 268212120. Its totient is φ = 178701120.

The previous prime is 223443203. The next prime is 223443247. The reversal of 223443245 is 542344322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 87067561 + 136375684 = 9331^2 + 11678^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-223443245 is a prime.

It is a super-2 number, since 2×223443245² = 99853767472260050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223443247) 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, 29951 + ... + 36659.

It is an arithmetic number, because the mean of its divisors is an integer number (33526515).

Almost surely, 2^223443245 is an apocalyptic number.

It is an amenable number.

223443245 is a deficient number, since it is larger than the sum of its proper divisors (44768875).

223443245 is an equidigital number, since it uses as much as digits as its factorization.

223443245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13375.

The product of its digits is 23040, while the sum is 29.

The square root of 223443245 is about 14948.0180960554. The cubic root of 223443245 is about 606.8142114198.

Adding to 223443245 its reverse (542344322), we get a palindrome (765787567).

The spelling of 223443245 in words is "two hundred twenty-three million, four hundred forty-three thousand, two hundred forty-five".