223522109 has 2 divisors, whose sum is σ = 223522110. Its totient is φ = 223522108.

The previous prime is 223522097. The next prime is 223522151. The reversal of 223522109 is 901225322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 149940025 + 73582084 = 12245^2 + 8578^2 .

It is a cyclic number.

It is not a de Polignac number, because 223522109 - 2²⁰ = 222473533 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223522199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111761054 + 111761055.

It is an arithmetic number, because the mean of its divisors is an integer number (111761055).

Almost surely, 2^223522109 is an apocalyptic number.

It is an amenable number.

223522109 is a deficient number, since it is larger than the sum of its proper divisors (1).

223522109 is an equidigital number, since it uses as much as digits as its factorization.

223522109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 223522109 is about 14950.6558050140. The cubic root of 223522109 is about 606.8855944487.

The spelling of 223522109 in words is "two hundred twenty-three million, five hundred twenty-two thousand, one hundred nine".