223097681 has 4 divisors (see below), whose sum is σ = 236221092. Its totient is φ = 209974272.

The previous prime is 223097671. The next prime is 223097711. The reversal of 223097681 is 186790322.

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 76300225 + 146797456 = 8735^2 + 12116^2 .

It is a cyclic number.

It is not a de Polignac number, because 223097681 - 2¹⁴ = 223081297 is a prime.

It is a super-3 number, since 3×223097681³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223097671) 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 3 ways as a sum of consecutive naturals, for example, 6561680 + ... + 6561713.

It is an arithmetic number, because the mean of its divisors is an integer number (59055273).

Almost surely, 2^223097681 is an apocalyptic number.

It is an amenable number.

223097681 is a deficient number, since it is larger than the sum of its proper divisors (13123411).

223097681 is a wasteful number, since it uses less digits than its factorization.

223097681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13123410.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 223097681 is about 14936.4547667778. The cubic root of 223097681 is about 606.5012291249.

The spelling of 223097681 in words is "two hundred twenty-three million, ninety-seven thousand, six hundred eighty-one".