223312249 has 2 divisors, whose sum is σ = 223312250. Its totient is φ = 223312248.

The previous prime is 223312241. The next prime is 223312259. The reversal of 223312249 is 942213322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164942649 + 58369600 = 12843^2 + 7640^2 .

It is a cyclic number.

It is not a de Polignac number, because 223312249 - 2³ = 223312241 is a prime.

It is not a weakly prime, because it can be changed into another prime (223312241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111656124 + 111656125.

It is an arithmetic number, because the mean of its divisors is an integer number (111656125).

Almost surely, 2^223312249 is an apocalyptic number.

It is an amenable number.

223312249 is a deficient number, since it is larger than the sum of its proper divisors (1).

223312249 is an equidigital number, since it uses as much as digits as its factorization.

223312249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 28.

The square root of 223312249 is about 14943.6357356568. The cubic root of 223312249 is about 606.6956044577.

The spelling of 223312249 in words is "two hundred twenty-three million, three hundred twelve thousand, two hundred forty-nine".