223000261 has 4 divisors (see below), whose sum is σ = 243273024. Its totient is φ = 202727500.

The previous prime is 223000259. The next prime is 223000303. The reversal of 223000261 is 162000322.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223000261 - 2¹ = 223000259 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223000241) 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, 10136365 + ... + 10136386.

It is an arithmetic number, because the mean of its divisors is an integer number (60818256).

Almost surely, 2^223000261 is an apocalyptic number.

It is an amenable number.

223000261 is a deficient number, since it is larger than the sum of its proper divisors (20272763).

223000261 is a wasteful number, since it uses less digits than its factorization.

223000261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20272762.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 223000261 is about 14933.1932619919. The cubic root of 223000261 is about 606.4129360331.

Adding to 223000261 its reverse (162000322), we get a palindrome (385000583).

The spelling of 223000261 in words is "two hundred twenty-three million, two hundred sixty-one", and thus it is an aban number.