223784081 has 2 divisors, whose sum is σ = 223784082. Its totient is φ = 223784080.

The previous prime is 223784069. The next prime is 223784101. The reversal of 223784081 is 180487322.

223784081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143520400 + 80263681 = 11980^2 + 8959^2 .

It is a cyclic number.

It is not a de Polignac number, because 223784081 - 2²⁶ = 156675217 is a prime.

It is a super-2 number, since 2×223784081² = 100158629818029122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (223784681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111892040 + 111892041.

It is an arithmetic number, because the mean of its divisors is an integer number (111892041).

Almost surely, 2^223784081 is an apocalyptic number.

It is an amenable number.

223784081 is a deficient number, since it is larger than the sum of its proper divisors (1).

223784081 is an equidigital number, since it uses as much as digits as its factorization.

223784081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 223784081 is about 14959.4144604660. The cubic root of 223784081 is about 607.1225955552.

The spelling of 223784081 in words is "two hundred twenty-three million, seven hundred eighty-four thousand, eighty-one".