223307081 has 2 divisors, whose sum is σ = 223307082. Its totient is φ = 223307080.

The previous prime is 223307027. The next prime is 223307083. The reversal of 223307081 is 180703322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186595600 + 36711481 = 13660^2 + 6059^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223307081 is a prime.

It is a super-2 number, since 2×223307081² = 99732104849481122, which contains 22 as substring.

Together with 223307083, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223307081.

It is not a weakly prime, because it can be changed into another prime (223307083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111653540 + 111653541.

It is an arithmetic number, because the mean of its divisors is an integer number (111653541).

Almost surely, 2^223307081 is an apocalyptic number.

It is an amenable number.

223307081 is a deficient number, since it is larger than the sum of its proper divisors (1).

223307081 is an equidigital number, since it uses as much as digits as its factorization.

223307081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 223307081 is about 14943.4628182359. The cubic root of 223307081 is about 606.6909242739.

The spelling of 223307081 in words is "two hundred twenty-three million, three hundred seven thousand, eighty-one".