223456613 has 4 divisors (see below), whose sum is σ = 223681740. Its totient is φ = 223231488.

The previous prime is 223456609. The next prime is 223456631. The reversal of 223456613 is 316654322.

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 211498849 + 11957764 = 14543^2 + 3458^2 .

It is a cyclic number.

It is not a de Polignac number, because 223456613 - 2² = 223456609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223456613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223456633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111068 + ... + 113061.

It is an arithmetic number, because the mean of its divisors is an integer number (55920435).

Almost surely, 2^223456613 is an apocalyptic number.

It is an amenable number.

223456613 is a deficient number, since it is larger than the sum of its proper divisors (225127).

223456613 is an equidigital number, since it uses as much as digits as its factorization.

223456613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225126.

The product of its digits is 25920, while the sum is 32.

The square root of 223456613 is about 14948.4652389468. The cubic root of 223456613 is about 606.8263125249.

The spelling of 223456613 in words is "two hundred twenty-three million, four hundred fifty-six thousand, six hundred thirteen".