243236001 has 16 divisors (see below), whose sum is σ = 327567744. Its totient is φ = 160539264.

The previous prime is 243235997. The next prime is 243236009. The reversal of 243236001 is 100632342.

It is a happy number.

It is not a de Polignac number, because 243236001 - 2² = 243235997 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (243236009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145965 + ... + 147621.

It is an arithmetic number, because the mean of its divisors is an integer number (20472984).

Almost surely, 2^243236001 is an apocalyptic number.

It is an amenable number.

243236001 is a deficient number, since it is larger than the sum of its proper divisors (84331743).

243236001 is a wasteful number, since it uses less digits than its factorization.

243236001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 243236001 is about 15596.0251666891. The cubic root of 243236001 is about 624.2270987786.

Adding to 243236001 its reverse (100632342), we get a palindrome (343868343).

The spelling of 243236001 in words is "two hundred forty-three million, two hundred thirty-six thousand, one".