223630009 has 2 divisors, whose sum is σ = 223630010. Its totient is φ = 223630008.

The previous prime is 223630003. The next prime is 223630073. The reversal of 223630009 is 900036322.

223630009 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., 223203600 + 426409 = 14940^2 + 653^2 .

It is a cyclic number.

It is not a de Polignac number, because 223630009 - 2¹⁹ = 223105721 is a prime.

It is equal to p_12311719 and since 223630009 and 12311719 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (223630003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111815004 + 111815005.

It is an arithmetic number, because the mean of its divisors is an integer number (111815005).

Almost surely, 2^223630009 is an apocalyptic number.

It is an amenable number.

223630009 is a deficient number, since it is larger than the sum of its proper divisors (1).

223630009 is an equidigital number, since it uses as much as digits as its factorization.

223630009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 223630009 is about 14954.2639069932. The cubic root of 223630009 is about 606.9832319516.

The spelling of 223630009 in words is "two hundred twenty-three million, six hundred thirty thousand, nine".