223045261 has 4 divisors (see below), whose sum is σ = 223372512. Its totient is φ = 222718012.

The previous prime is 223045243. The next prime is 223045297. The reversal of 223045261 is 162540322.

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 223045261 - 2¹⁷ = 222914189 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 (223045201) 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, 162601 + ... + 163966.

It is an arithmetic number, because the mean of its divisors is an integer number (55843128).

Almost surely, 2^223045261 is an apocalyptic number.

It is an amenable number.

223045261 is a deficient number, since it is larger than the sum of its proper divisors (327251).

223045261 is an equidigital number, since it uses as much as digits as its factorization.

223045261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327250.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 223045261 is about 14934.6998965496. The cubic root of 223045261 is about 606.4537233498.

Adding to 223045261 its reverse (162540322), we get a palindrome (385585583).

The spelling of 223045261 in words is "two hundred twenty-three million, forty-five thousand, two hundred sixty-one".