243433201 has 4 divisors (see below), whose sum is σ = 265563504. Its totient is φ = 221302900.

The previous prime is 243433199. The next prime is 243433213. The reversal of 243433201 is 102334342.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243433201 - 2¹ = 243433199 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (243433231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11065135 + ... + 11065156.

It is an arithmetic number, because the mean of its divisors is an integer number (66390876).

Almost surely, 2^243433201 is an apocalyptic number.

It is an amenable number.

243433201 is a deficient number, since it is larger than the sum of its proper divisors (22130303).

243433201 is a wasteful number, since it uses less digits than its factorization.

243433201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22130302.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 243433201 is about 15602.3460094949. The cubic root of 243433201 is about 624.3957475146.

Adding to 243433201 its reverse (102334342), we get a palindrome (345767543).

The spelling of 243433201 in words is "two hundred forty-three million, four hundred thirty-three thousand, two hundred one".