223923481 has 2 divisors, whose sum is σ = 223923482. Its totient is φ = 223923480.

The previous prime is 223923461. The next prime is 223923499. The reversal of 223923481 is 184329322.

It is a happy number.

223923481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 220374025 + 3549456 = 14845^2 + 1884^2 .

It is a cyclic number.

It is not a de Polignac number, because 223923481 - 2⁵ = 223923449 is a prime.

It is a super-2 number, since 2×223923481² = 100283450686314722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (223923431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111961740 + 111961741.

It is an arithmetic number, because the mean of its divisors is an integer number (111961741).

Almost surely, 2^223923481 is an apocalyptic number.

It is an amenable number.

223923481 is a deficient number, since it is larger than the sum of its proper divisors (1).

223923481 is an equidigital number, since it uses as much as digits as its factorization.

223923481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 223923481 is about 14964.0730083758. The cubic root of 223923481 is about 607.2486327042.

The spelling of 223923481 in words is "two hundred twenty-three million, nine hundred twenty-three thousand, four hundred eighty-one".