223545265 has 4 divisors (see below), whose sum is σ = 268254324. Its totient is φ = 178836208.

The previous prime is 223545263. The next prime is 223545269. The reversal of 223545265 is 562545322.

223545265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125059489 + 98485776 = 11183^2 + 9924^2 .

It is a cyclic number.

It is not a de Polignac number, because 223545265 - 2¹ = 223545263 is a prime.

It is a super-3 number, since 3×223545265³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223545265.

It is not an unprimeable number, because it can be changed into a prime (223545263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22354522 + ... + 22354531.

It is an arithmetic number, because the mean of its divisors is an integer number (67063581).

Almost surely, 2^223545265 is an apocalyptic number.

It is an amenable number.

223545265 is a deficient number, since it is larger than the sum of its proper divisors (44709059).

223545265 is an equidigital number, since it uses as much as digits as its factorization.

223545265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44709058.

The product of its digits is 72000, while the sum is 34.

The square root of 223545265 is about 14951.4301991482. The cubic root of 223545265 is about 606.9065507017.

The spelling of 223545265 in words is "two hundred twenty-three million, five hundred forty-five thousand, two hundred sixty-five".