223454881 has 8 divisors (see below), whose sum is σ = 243348840. Its totient is φ = 203947392.

The previous prime is 223454863. The next prime is 223454887. The reversal of 223454881 is 188454322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22240656 + 201214225 = 4716^2 + 14185^2 .

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 223454881 - 2⁹ = 223454369 is a prime.

It is a super-2 number, since 2×223454881² = 99864167685448322, which contains 22 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 223454881.

It is not an unprimeable number, because it can be changed into a prime (223454887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95410 + ... + 97723.

It is an arithmetic number, because the mean of its divisors is an integer number (30418605).

Almost surely, 2^223454881 is an apocalyptic number.

It is an amenable number.

223454881 is a deficient number, since it is larger than the sum of its proper divisors (19893959).

223454881 is a wasteful number, since it uses less digits than its factorization.

223454881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193235.

The product of its digits is 61440, while the sum is 37.

The square root of 223454881 is about 14948.4073064658. The cubic root of 223454881 is about 606.8247446950.

The spelling of 223454881 in words is "two hundred twenty-three million, four hundred fifty-four thousand, eight hundred eighty-one".