243663101 has 8 divisors (see below), whose sum is σ = 270830304. Its totient is φ = 217331920.

The previous prime is 243663073. The next prime is 243663103. The reversal of 243663101 is 101366342.

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 243663101 - 2⁶ = 243663037 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 (243663103) 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, 208391 + ... + 209556.

It is an arithmetic number, because the mean of its divisors is an integer number (33853788).

Almost surely, 2^243663101 is an apocalyptic number.

It is an amenable number.

243663101 is a deficient number, since it is larger than the sum of its proper divisors (27167203).

243663101 is a wasteful number, since it uses less digits than its factorization.

243663101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418011.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 243663101 is about 15609.7117526237. The cubic root of 243663101 is about 624.5922468910.

The spelling of 243663101 in words is "two hundred forty-three million, six hundred sixty-three thousand, one hundred one".