223513313 has 4 divisors (see below), whose sum is σ = 223774980. Its totient is φ = 223251648.

The previous prime is 223513289. The next prime is 223513319. The reversal of 223513313 is 313315322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 166616464 + 56896849 = 12908^2 + 7543^2 .

It is a cyclic number.

It is not a de Polignac number, because 223513313 - 2²⁴ = 206736097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223513319) 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 3 ways as a sum of consecutive naturals, for example, 129548 + ... + 131261.

It is an arithmetic number, because the mean of its divisors is an integer number (55943745).

Almost surely, 2^223513313 is an apocalyptic number.

It is an amenable number.

223513313 is a deficient number, since it is larger than the sum of its proper divisors (261667).

223513313 is an equidigital number, since it uses as much as digits as its factorization.

223513313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261666.

The product of its digits is 1620, while the sum is 23.

The square root of 223513313 is about 14950.3616344221. The cubic root of 223513313 is about 606.8776336617.

Adding to 223513313 its reverse (313315322), we get a palindrome (536828635).

The spelling of 223513313 in words is "two hundred twenty-three million, five hundred thirteen thousand, three hundred thirteen".