223420265 has 4 divisors (see below), whose sum is σ = 268104324. Its totient is φ = 178736208.

The previous prime is 223420231. The next prime is 223420271. The reversal of 223420265 is 562024322.

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 39980329 + 183439936 = 6323^2 + 13544^2 .

It is a cyclic number.

It is not a de Polignac number, because 223420265 - 2⁶ = 223420201 is a prime.

It is a super-2 number, since 2×223420265² = 99833229625340450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22342022 + ... + 22342031.

It is an arithmetic number, because the mean of its divisors is an integer number (67026081).

Almost surely, 2^223420265 is an apocalyptic number.

It is an amenable number.

223420265 is a deficient number, since it is larger than the sum of its proper divisors (44684059).

223420265 is an equidigital number, since it uses as much as digits as its factorization.

223420265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44684058.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 223420265 is about 14947.2494125173. The cubic root of 223420265 is about 606.7934081227.

Adding to 223420265 its reverse (562024322), we get a palindrome (785444587).

The spelling of 223420265 in words is "two hundred twenty-three million, four hundred twenty thousand, two hundred sixty-five".