223146641 has 8 divisors (see below), whose sum is σ = 242036424. Its totient is φ = 204897280.

The previous prime is 223146613. The next prime is 223146661. The reversal of 223146641 is 146641322.

223146641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 92416 + 223054225 = 304^2 + 14935^2 .

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 223146641 - 2⁶ = 223146577 is a prime.

It is a super-3 number, since 3×223146641³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (223146611) 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, 159380 + ... + 160773.

It is an arithmetic number, because the mean of its divisors is an integer number (30254553).

Almost surely, 2^223146641 is an apocalyptic number.

It is an amenable number.

223146641 is a deficient number, since it is larger than the sum of its proper divisors (18889783).

223146641 is a wasteful number, since it uses less digits than its factorization.

223146641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320211.

The product of its digits is 6912, while the sum is 29.

The square root of 223146641 is about 14938.0936200039. The cubic root of 223146641 is about 606.5455925448.

Adding to 223146641 its reverse (146641322), we get a palindrome (369787963).

The spelling of 223146641 in words is "two hundred twenty-three million, one hundred forty-six thousand, six hundred forty-one".