223457261 has 8 divisors (see below), whose sum is σ = 227092800. Its totient is φ = 219830688.

The previous prime is 223457219. The next prime is 223457279. The reversal of 223457261 is 162754322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 223457261 - 2¹⁸ = 223195117 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 (223457561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63065 + ... + 66513.

It is an arithmetic number, because the mean of its divisors is an integer number (28386600).

Almost surely, 2^223457261 is an apocalyptic number.

It is an amenable number.

223457261 is a deficient number, since it is larger than the sum of its proper divisors (3635539).

223457261 is an equidigital number, since it uses as much as digits as its factorization.

223457261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483.

The product of its digits is 20160, while the sum is 32.

The square root of 223457261 is about 14948.4869133970. The cubic root of 223457261 is about 606.8268991013.

It can be divided in two parts, 2234 and 57261, that added together give a palindrome (59495).

The spelling of 223457261 in words is "two hundred twenty-three million, four hundred fifty-seven thousand, two hundred sixty-one".