243031201 has 16 divisors (see below), whose sum is σ = 294534144. Its totient is φ = 195761664.

The previous prime is 243031193. The next prime is 243031237. The reversal of 243031201 is 102130342.

It is a happy number.

It is not a de Polignac number, because 243031201 - 2³ = 243031193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243031241) 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, 112336 + ... + 114478.

It is an arithmetic number, because the mean of its divisors is an integer number (18408384).

Almost surely, 2^243031201 is an apocalyptic number.

It is an amenable number.

243031201 is a deficient number, since it is larger than the sum of its proper divisors (51502943).

243031201 is a wasteful number, since it uses less digits than its factorization.

243031201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 243031201 is about 15589.4580085390. The cubic root of 243031201 is about 624.0518538776.

Adding to 243031201 its reverse (102130342), we get a palindrome (345161543).

The spelling of 243031201 in words is "two hundred forty-three million, thirty-one thousand, two hundred one".