223426081 has 2 divisors, whose sum is σ = 223426082. Its totient is φ = 223426080.

The previous prime is 223426079. The next prime is 223426169. The reversal of 223426081 is 180624322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144216081 + 79210000 = 12009^2 + 8900^2 .

It is a cyclic number.

It is not a de Polignac number, because 223426081 - 2¹ = 223426079 is a prime.

It is a super-2 number, since 2×223426081² = 99838427342037122, which contains 22 as substring.

Together with 223426079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (223426051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111713040 + 111713041.

It is an arithmetic number, because the mean of its divisors is an integer number (111713041).

Almost surely, 2^223426081 is an apocalyptic number.

It is an amenable number.

223426081 is a deficient number, since it is larger than the sum of its proper divisors (1).

223426081 is an equidigital number, since it uses as much as digits as its factorization.

223426081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 223426081 is about 14947.4439620960. The cubic root of 223426081 is about 606.7986733565.

The spelling of 223426081 in words is "two hundred twenty-three million, four hundred twenty-six thousand, eighty-one".