243012001 has 8 divisors (see below), whose sum is σ = 245222208. Its totient is φ = 240810000.

The previous prime is 243011999. The next prime is 243012013. The reversal of 243012001 is 100210342.

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 243012001 - 2¹ = 243011999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243012031) 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, 67866 + ... + 71356.

It is an arithmetic number, because the mean of its divisors is an integer number (30652776).

Almost surely, 2^243012001 is an apocalyptic number.

It is an amenable number.

243012001 is a deficient number, since it is larger than the sum of its proper divisors (2210207).

243012001 is a wasteful number, since it uses less digits than its factorization.

243012001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 243012001 is about 15588.8421956218. The cubic root of 243012001 is about 624.0354196213.

Adding to 243012001 its reverse (100210342), we get a palindrome (343222343).

The spelling of 243012001 in words is "two hundred forty-three million, twelve thousand, one".