223545269 has 2 divisors, whose sum is σ = 223545270. Its totient is φ = 223545268.

The previous prime is 223545263. The next prime is 223545293. The reversal of 223545269 is 962545322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197402500 + 26142769 = 14050^2 + 5113^2 .

It is a cyclic number.

It is not a de Polignac number, because 223545269 - 2¹⁶ = 223479733 is a prime.

It is a super-3 number, since 3×223545269³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223545263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111772634 + 111772635.

It is an arithmetic number, because the mean of its divisors is an integer number (111772635).

Almost surely, 2^223545269 is an apocalyptic number.

It is an amenable number.

223545269 is a deficient number, since it is larger than the sum of its proper divisors (1).

223545269 is an equidigital number, since it uses as much as digits as its factorization.

223545269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 38.

The square root of 223545269 is about 14951.4303329146. The cubic root of 223545269 is about 606.9065543216.

The spelling of 223545269 in words is "two hundred twenty-three million, five hundred forty-five thousand, two hundred sixty-nine".